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Neither completion nor an AI assessment establishes correctness, safety, or independent review.","jobId":"66350eb4-e6c5-4f41-bb8f-1d72a8599095","kind":"shape:chain","nodes":[{"acceptedSubmissionHash":"4ac1521782c09d38cc010e143da31e081ac861174ed05827df3c95aa57f3cca8","dependsOn":["audit_imported_code"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"ea5db8ea23a93d7611f9ab749d6255ad6596ee76a985c1261d43e63612dfc3cf","skillId":"adapt-contract-project","tools":[]},"key":"adapt_contract_project","kind":"code","role":"implement","skillHash":"ea5db8ea23a93d7611f9ab749d6255ad6596ee76a985c1261d43e63612dfc3cf","skillId":"adapt-contract-project","state":"accepted"},{"acceptedSubmissionHash":"e3fc06b9231cd85b6899c4f80e61d7e8f171469abdab92eaee428898762cde85","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","subagents":3,"tools":[]},"key":"audit_economics","kind":"code","role":"review","skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","state":"accepted"},{"acceptedSubmissionHash":"06775eba97f5b0e81c384cf1b7d39a34a0303fc4d397e0ed7ba97e89876decba","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","subagents":3,"tools":[]},"key":"audit_flow","kind":"code","role":"review","skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","state":"accepted"},{"acceptedSubmissionHash":"db8f8b055b024d40c00c83f758ce1c188d259a2251e70b1d3a381af5d78ee0dd","dependsOn":[],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"b72293c3366fff3f0b93151bca72cc6cbd189dad31d1ccd1d34dd483f2165a36","skillId":"audit-imported-code","subagents":4,"tools":[]},"key":"audit_imported_code","kind":"code","role":"review","skillHash":"b72293c3366fff3f0b93151bca72cc6cbd189dad31d1ccd1d34dd483f2165a36","skillId":"audit-imported-code","state":"accepted"},{"acceptedSubmissionHash":"fbd0c4603676460e83847a140e73f5ce1b1f15ccfcf96a7e683024a4b0ab106d","dependsOn":["adapt_contract_project","write_foundry_tests","manifest","audit_math","audit_permissions","audit_economics","audit_flow"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"b89279670f5a00f5d26286edee00c97dd158b997031350a01cafe6e0329ad227","skillId":"audit-judge","subagents":4,"tools":[]},"key":"audit_judge","kind":"code","role":"review","skillHash":"b89279670f5a00f5d26286edee00c97dd158b997031350a01cafe6e0329ad227","skillId":"audit-judge","state":"accepted"},{"acceptedSubmissionHash":"0495440c7e2e6c94d1e3ea0f4645a8581ec323f0aa298445d24ae14859839d27","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","subagents":3,"tools":[]},"key":"audit_math","kind":"code","role":"review","skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","state":"accepted"},{"acceptedSubmissionHash":"952a38d730a3071e54c3fd823fa9bca413eca525b43c9125111ad2f72d8b9b4e","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","subagents":3,"tools":[]},"key":"audit_permissions","kind":"code","role":"review","skillHash":"bc5bfc8455464381f2db18badb2b55cf8bec1e535c019349a0378fa990741171","skillId":"audit-specialist","state":"accepted"},{"acceptedSubmissionHash":"3984f40aea36d0ac2716b1d7f14ab7a570ee201ada579d217314d40480bb8bc6","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"tools":[]},"key":"manifest","kind":"code","role":"integrate","skillHash":null,"skillId":null,"state":"accepted"},{"acceptedSubmissionHash":"a6bb738649c6ba4cd4b2c18d9a4022425782939e5a069f4b7a55fd4352b9de65","dependsOn":["adapt_contract_project"],"execution":{"network":false,"profile":"foundry","requires":[],"skillHash":"606842ccca0e7c5d3017a54684625438eab9b351eb51dcf0cf88c43d1ea41464","skillId":"write-foundry-tests","subagents":4,"tools":[]},"key":"write_foundry_tests","kind":"code","role":"tests","skillHash":"606842ccca0e7c5d3017a54684625438eab9b351eb51dcf0cf88c43d1ea41464","skillId":"write-foundry-tests","state":"accepted"}],"objective":"Deploy ChessEngineV5 on Ethereum mainnet exactly as committed, from launch.json, with no constructor arguments. This is intentionally an engine-only export: the engine, its rule libraries and the complete engine/rules tests and corpora. The hook is a separate later launch; do not add hook code, integration harnesses or unrelated dependencies to this engine project. Preserve all production sources, compiler settings and constructor arguments. The project builds with forge build and its full tests pass with forge test; it uses one 200-run optimizer setting with via_ir = true, and ChessEngineV5 has 22,268 runtime 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Precision, 'overflow intermediates'. fromShare scales the payment by FLOOR (100,000) before taking its logarithm, in checked arithmetic. Any paid > type(uint256).max / 100_000 (= 1157920892373161954235709850086879078532699846656405640394575840079131296, about 1.16e71) reverts with Panic(0x11) whatever the depth, including depths where the true share is tiny and the answer should simply be 0, and depths where it should be the 9,000 cap. The function has a zero/zero guard and a cap but no bound on this product. Impact: the caller (the future hook) would revert on such a trade rather than get a strength; it cannot be reached by any real token amount today (balances are far below 2^236), and Strength is not referenced by ChessEngineV5, so the contract in launch.json is unaffected. This was previously imported as finding 8116943f and left unresolved by design; it is repeated here only because it is the one arithmetic overflow in the tree, with the exact boundary. Minimal fix that preserves the curve: compute up = _log2x256(paid) + _log2x256(FLOOR) (FLOOR is a constant, 16*256 + 134 = 4230) or clamp paid to type(uint256).max / FLOOR before multiplying.","line":15,"path":"src/Strength.sol","reproduction":"StrengthHarness h; h.fromShare(type(uint256).max / 100_000, type(uint256).max) returns 0 (share exactly 1/FLOOR) and h.fromShare(type(uint256).max / 100_000, 1 << 240) returns 9000; h.fromShare(type(uint256).max / 100_000 + 1, type(uint256).max) reverts Panic(0x11) where 0 is expected; h.fromShare(1 << 240, 1 << 255) reverts Panic(0x11) where a share of 2^-15 (about 0.003%, roughly 1,400 bps) is expected. Verified with a scratch test (test/scratch/Probe.t.sol, test_strengthOverflowBoundary) and by the tree's own test_knownOverflowAtMultiplicationBoundary.","severity":"low","snippet":"        uint256 up = _log2x256(paid * FLOOR);","title":"Strength.fromShare: paid * FLOOR overflows and panics instead of returning the strength (latent, not linked into ChessEngineV5)"},{"citation":"resolved","description":"Boundary check of the EIP-170 limit. forge build --sizes on the committed tree at 200 runs with via_ir reports ChessEngineV5 runtime 22,268 bytes and initcode 22,294 bytes, 2,308 bytes under 24,576; the task brief itself says 22,268. The figure in the manifest notes and in the foundry.toml comment (line 11) is stale by 157 bytes. Notes are explanatory text and do not affect deployment, and the size is within the limit, so this is informational and a duplicate of imported finding 61f8e48c; it is recorded so the judge's size evidence matches the artifact. The test-only Judge (26,184) and V5Probe (26,172) exceed the limit but are not deployed.","line":9,"path":"launch.json","reproduction":"forge build --sizes | grep ChessEngineV5 prints '| ChessEngineV5 | 22,268 | 22,294 | 2,308 | 26,858 |'; test_legalChoicesMatesAndGas logs 'runtime bytes: 22268'. Expected: the note says the actual size, or omits it.","severity":"info","snippet":"  \"notes\": \"IMDuel's chess engine on Ethereum (chain 1), deployed alone before the hook launch: no token, pool, distributor, owner, admin or upgrade path; nothing is called after deployment. ChessEngineV5 is pure: play() chooses a move for a position at a strength (0-10,000 basis points) and applies it by the rules (Rules library, Bitboard library), playAny() picks a seeded legal move. It holds no state and no funds. The project compiles at 200 optimizer runs (foundry.toml) to keep it under the 24,576-byte runtime limit (22,111 bytes).\"","title":"launch.json notes and foundry.toml comment state 22,111 runtime bytes; the committed build produces 22,268"},{"citation":"resolved","description":"Coverage rows. play (ChessEngineV5.sol:92): holds. Traced _context, _choose, _cheap, _gain, _passer, _placement, _progress, _risk, _room, _exact, _best, _convert/_mop, _steps, _distance, _value, _position tables and _mix for overflow, truncation, wrong-direction division, shift widths and mask layouts. All intermediates are bounded: scores are at most MATE (100,000) * 10,000 plus noise in [-4,000,000, 1,200,000]; slack is 1,000..10,000; push is 0..10,000 in steps of 500; cap = (8 + acc/1000) * 10,000 / count never divides by zero (count != 0 is required); 1 << i in the seen/refined masks has i < 256 because legalMovesAndCheck caps the array at 256; EDGE's 2-bit-per-square layout was verified rank by rank (0x1554/0x1aa4/0x1be4 pattern) and 3 - edge cannot underflow; the piece-square byte index r*4+f stays in 0..31; signed divisions in _gain truncate toward zero symmetrically; Solidity precedence makes every 'a & b != 0' and 'x >> i & 1 == 0' parse as intended. Boundary inputs: strengthBps 10,001 reverts (require), 10,000 and 0 play; quiet 65,535 saturates push at 10,000; previous all zero disables history; a board with no enemy king sets enemyKing = 64 and every reader guards it; a board with no own king gives flights = 0 and mateInOne returns 0 on a missing king. Max gas per choice on the 3,968 corpus positions is 598,185, average 227,987, far under a mainnet block. playAny (ChessEngineV5.sol:100): holds; seed % moves.length is guarded by the no-legal-move require. choose (ChessEngineV5.sol:114): holds; same path as play without playLegal. Rules.playLegal/move, Bitboard.legalMovesAndCheck, status, makeMoveInto, boardAfter, _castling, _prepare pins and check masks: holds within this area (shifts by up to 64 on uint64 only occur where the result is intentionally 0; uint8 square arithmetic cannot wrap; the free-memory-pointer rollback in legalMovesAndCheck only discards the dead scratch/Gen allocations made after the moves array); the 29,828-position chess.js corpus and the endings corpus pass. Strength.fromShare: finding 1. Not reached in depth: the heuristic quality of scores (e.g. our2 counting two same-group defenders once) is design, not arithmetic, and was not judged; behaviour on boards that are not reachable by legal play (type-7 nibbles, two kings of one colour, en passant bytes without a pawn) was not characterised beyond noting that such inputs are garbage-in and the hook never produces them. Tools run: forge build, forge build --sizes, full forge test (28 tests, 10 suites, 0 failures, 114 s) with the project seed, and scratch probes under test/scratch/; no Slither, Mythril or fuzz campaign beyond the tree's own 256-run fuzz tests.","line":92,"path":"src/ChessEngineV5.sol","reproduction":"Not a defect: this row records what was checked. State: commit 2b6c3be, forge 1.8.3, solc 0.8.26 via_ir 200 runs.","severity":"info","snippet":"    function play(uint256 board, uint32 mover, uint32 other, bool black, uint256 strengthBps, uint256 seed,","title":"Coverage of the math area (Math Precision, Boundary, Numerical Gap): entry points hold; no engine defect found"}],"hash":"0495440c7e2e6c94d1e3ea0f4645a8581ec323f0aa298445d24ae14859839d27","nodeId":"859083f8-0596-41df-97ed-c552ba13576c","outcome":"completed","summary":"The review is complete and `.imd-findings.json` holds three entries.\n\n**Outcome:** the engine's math holds. I found no arithmetic defect in ChessEngineV5, Bitboard, Rules or Chess. The one substantiated overflow is in the Strength library, which the deployed contract does not link.\n\n**What I checked**\n- Build and full suite pass on the committed tree: 28 tests, 10 suites, 0 failures. ChessEngineV5 runtime is 22,268 bytes, 2,308 under the EIP-170 limit.\n- Math Precision: every multiplication, division, shift, mask and signed cast in the choice path. All intermediates are bounded small integers, the EDGE and piece-square table layouts index correctly, and Solidity precedence makes each `a & b != 0` parse as intended.\n- Boundary: strength 10,001 reverts, 10,000 and 0 play, quiet 65,535 saturates the progress push, missing kings are guarded everywhere, and the free-memory rollback in move generation only discards dead scratch data. Max gas per choice on the corpus is about 598k.\n- Numerical Gap: the look-cap, slack, push and second-look thresholds change continuously across their bounds, and the refined-move selection always returns an exactly scored move when any look was taken.\n\n**Findings written**\n- Low: `Strength.fromShare` multiplies `paid * 100_000` in checked arithmetic, so any payment above about 1.16e71 panics instead of returning a strength. Concrete inputs and the boundary value are in the file. It is unreachable with real token amounts and is a duplicate of the earlier imported finding.\n- Info: the launch.json note and foundry.toml comment say 22,111 runtime bytes; the artifact is 22,268.\n- Info: a coverage row for play, playAny, choose and the rules libraries, with what was not reached.\n\nThe scratch probes live under `test/scratch/Probe.t.sol` and are not part of the submission.","treeHash":null,"usage":{"cachedInputTokens":1382586,"inputTokens":450,"model":"claude-fable-5-1","outputTokens":41962,"runtime":"claude","turns":29,"wallClockMs":803547}},{"artifacts":[],"attempt":1,"bundleHash":"5b4f271ae159ffddfe0aa1c9d26d370ccab5750742a0f427e749b8c515f41587","device":"5e0997ddda681c32","findings":[],"hash":"05ef1be2137d6d3dcd7bb026b666123d4d2fa01903f626d357ea4e7b6a6465fa","nodeId":"03f63613-300c-4705-8d8f-e29ab832ef0d","outcome":"completed","summary":"Fixed the timeout by loading corpus data once and splitting all 250 games into five test ranges. All 29,828 positions remain covered.\n\n- `forge build`: passed.\n- `forge test`: **28 passed in 107.42 seconds**, using the required seed.\n- Production sources, manifest, configuration, and corpora remain unchanged.\n\n`ADAPTATION.md` records the repair and the existing Strength overflow retained under the source-preservation requirement.","treeHash":"090a6298db9bbb3a1c674b64436e695efced008e","usage":{"cachedInputTokens":4448896,"inputTokens":114587,"model":"gpt-6-astra","outputTokens":37747,"runtime":"codex","turns":22,"wallClockMs":2885163}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"ca080fd306399669","findings":[{"citation":"resolved","description":"fromShare multiplies the payment by FLOOR (100,000) before taking its logarithm. The product is checked arithmetic, so any payment above type(uint256).max / 100_000 (about 1.16e72 base units) reverts with an arithmetic panic rather than returning MAX_BPS, although such a share is at or above the cap. The library is not reached by ChessEngineV5 (the deployed contract only imports Bitboard, Chess, Rules); in this tree it is used by test/EngineV5Games.t.sol and test/Strength.t.sol, which pin the panic as current behaviour (ADAPTATION.md item 2 records it as unresolved). It becomes reachable in the later hook launch wherever a trade size is fed to fromShare unbounded. Minimal fix that keeps the curve: return the cap early when paid >= depth, and compute up as _log2x256(paid) + _log2x256(FLOOR) instead of _log2x256(paid * FLOOR) (the fraction approximation changes by at most one step), or saturate paid at type(uint256).max / FLOOR before multiplying.","line":15,"path":"src/Strength.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {Strength} from \"src/Strength.sol\";\n\ncontract StrengthShareHarness {\n    function fromShare(uint256 paid, uint256 depth) external pure returns (uint16) {\n        return Strength.fromShare(paid, depth);\n    }\n}\n\n/// Strength.fromShare multiplies `paid` by FLOOR (100,000) before taking its logarithm. A payment above\n/// type(uint256).max / 100_000 overflows that product and the call reverts with Panic(0x11) instead of returning\n/// the capped strength. Fails on the current code; passes once the product no longer overflows (for example by\n/// adding log2(FLOOR) to log2(paid) instead of multiplying, or by returning the cap when paid >= depth).\ncontract StrengthOverflowProofTest is Test {\n    StrengthShareHarness h = new StrengthShareHarness();\n\n    function test_paymentAboveMaxOverFloorIsCappedNotReverted() public view {\n        uint256 paid = type(uint256).max / 100_000 + 1;\n        // one wei less already returns the cap\n        assertEq(h.fromShare(paid - 1, 1), 9_000, \"just below the overflow boundary\");\n        // one wei more must also be the cap (a 100%+ share), not a revert\n        assertEq(h.fromShare(paid, 1), 9_000, \"above the boundary, tiny depth\");\n        assertEq(h.fromShare(paid, paid), 9_000, \"above the boundary, the whole depth\");\n    }\n}","reproduction":"Call Strength.fromShare(paid, depth) with paid = type(uint256).max / 100_000 + 1 and depth = 1, or depth = paid. Expected: 9,000 (the cap; the share is 100% or more). Actual: revert Panic(0x11). With paid one unit smaller the same call returns 9,000. The attached proof (test/scratch/StrengthOverflowProof.t.sol) fails on this code with that panic.","severity":"low","snippet":"        uint256 up = _log2x256(paid * FLOOR);","title":"Strength.fromShare reverts with Panic(0x11) instead of returning the cap when paid exceeds type(uint256).max / 100_000"},{"citation":"resolved","description":"_exact asks Bitboard.mateInOne(n, !c.white, MATE_TESTS) whether the enemy mates after the leader. That search walks the enemy pieces from a1 upward (lsb order) and gives up after MATE_TESTS = 6 checking candidates (src/Bitboard.sol:603, `if (--tries == 0) return 0;`). Which six checks are tried therefore depends on where the enemy pieces sit, not on the position, and a mating check that happens to come seventh or later is never seen. Because the walk always starts from a1, the outcome differs between a position and its colour mirror: the same mate is found for one side and missed for the other, so at full strength the engine walks into a mate in one in one orientation only. Over the first 20 recorded games (every white-to-move position, every legal move: 28,227 moves) 277 moves allow the enemy a mate in one and the bounded guard misses 18 of them. The bound is documented as a cost measure (`it may miss a mate`), conversion play is unaffected, and the chosen move is always legal, so this is a play-quality defect, not a rules defect. A minimal fix that keeps the budget: try the direct-check candidates of the queen and rooks before the rest (or order the candidates by the checking piece's value), or raise the bound only in _exact, which runs at most four times per choice.","line":477,"path":"src/ChessEngineV5.sol","reproduction":"Board 0xc000aa0c90e0909000090b02099009000b110001100d00000605111043000204 (White Kg2 Qe2 Ra1 Rh1 Bc1 Ng1 Ba6, pawns b2 c2 d2 h3 a4 e4 f4; Black Kf7 Qe3 Ra8 Rh8 Bc8 Bd8 Nc6 Ng4, pawns c5 f5 g5 e6 b7 d7 h7), whiteState 0x80800eff, blackState 0x808035ff (no castling, no en passant), White to move, trial move 771 (Qe2-d1). After it Black has 8 checking moves and Qe3-f2# (move 1293) mates; Bitboard.mateInOne(n, false, 6) returns 1293, so _exact scores the move -100000. Mirror the board (0xcb000a0c0e0d99909005000003990009011001000001030a1060101040002204, whiteState 0x80800aff, blackState 0x808031ff, Black to move) and the mirrored trial move 3387 (Qe7-d8): White has the same 8 checking moves and Qe6-f7# (move 2869) mates, Bitboard.mateInOne(n, true) returns 2869, but Bitboard.mateInOne(n, true, 6) returns 0, so _exact scores the move -320 instead of -100000. Expected: the same verdict for a position and its mirror. Actual: lost for White, safe for Black. Reproduce with a contract inheriting ChessEngineV5 that calls _context, _effort(c, 10_000, 0), sets c.guardBps = 10_000 and returns _exact(c, m, 0) for both orientations, or directly with Bitboard.mateInOne on the position after the trial move.","severity":"low","snippet":"                && Bitboard.mateInOne(n, !c.white, MATE_TESTS) != 0) {","title":"Second-look guard against the enemy mate in one is order-dependent: the same position mirrored is judged safe for one colour and lost for the other"},{"citation":"resolved","description":"The manifest notes and the optimizer comment in foundry.toml line 11 both say ChessEngineV5 compiles to 22,111 runtime bytes at 200 runs. The committed settings (solc 0.8.26, cancun, 200 runs, via_ir, bytecode_hash none, cbor_metadata false) produce 22,268 runtime bytes and 22,294 initcode bytes, which is what the assignment states and what ADAPTATION.md item 1 records. The size is under the 24,576-byte limit either way and notes carry no deployment authority, so nothing is blocked; but a reviewer comparing the manifest against the artifact sees a mismatch, and a later change that trusts the note believes it has 157 bytes more headroom than it does. Fix: update the two notes to 22,268 (headroom 2,308 bytes) when the manifest is next touched.","line":9,"path":"launch.json","reproduction":"Run `forge build --sizes` on the committed tree, or read the length of deployedBytecode.object in out/ChessEngineV5.sol/ChessEngineV5.json: ChessEngineV5 runtime 22,268 bytes, initcode 22,294. Expected per launch.json notes and foundry.toml line 11: 22,111. Actual: 22,268.","severity":"info","snippet":"  \"notes\": \"IMDuel's chess engine on Ethereum (chain 1), deployed alone before the hook launch: no token, pool, distributor, owner, admin or upgrade path; nothing is called after deployment. ChessEngineV5 is pure: play() chooses a move for a position at a strength (0-10,000 basis points) and applies it by the rules (Rules library, Bitboard library), playAny() picks a seeded legal move. It holds no state and no funds. The project compiles at 200 optimizer runs (foundry.toml) to keep it under the 24,576-byte runtime limit (22,111 bytes).\"","title":"launch.json notes and the foundry.toml comment state a runtime size (22,111 bytes) that the committed build does not produce (22,268 bytes)"}],"hash":"06775eba97f5b0e81c384cf1b7d39a34a0303fc4d397e0ed7ba97e89876decba","nodeId":"4e0c5f34-e557-4f79-8015-985d372f4ff7","outcome":"completed","summary":"Review complete. The findings file holds three substantiated items, none above low, and no production file was changed.\n\n**Outcome**\n\nThe engine is sound on everything my area covers. The control flow from `play`, `playAny` and `choose` through the Bitboard rules and back to the packed board behaves as intended, and the committed build deploys cleanly with no constructor arguments.\n\n- **Full suite passes.** All 28 tests in 10 suites pass with the project's seed, including the 29,828-position chess.js corpus and self-play.\n- **Adversarial probes pass.** On 1,595 random-walk positions at random strengths, seeds, history and quiet counts, every move `play` chooses is legal and its applied result equals the checked rules path. Strength 10,001 reverts, mated and stalemated sides revert with \"no legal move\" on both entry points, and the 218-legal-move position costs under 600k gas. Worst gas seen anywhere was about 725k.\n- **Bytecode is clean.** With the protected test's reachability rule, the runtime and creation code contain no reachable DELEGATECALL, CALLCODE, SELFDESTRUCT, CREATE, CALL, STATICCALL or storage opcodes. Runtime is 22,268 bytes, ABI has only the three pure functions, no link references.\n- **Manifest is schema-valid.** Only kind, contracts and notes; one contract name of 13 characters; empty constructor arguments matching the implicit constructor; notes of 529 characters.\n\n**Findings written to .imd-findings.json**\n\n1. **Low, with proof.** `Strength.fromShare` overflows on `paid * FLOOR` for payments above `type(uint256).max / 100_000` and reverts with Panic(0x11) instead of returning the 9,000 cap. Not reachable from ChessEngineV5; it is a hook-side library shipped in this tree. The attached Foundry test fails on the current code.\n2. **Low.** The second-look guard against the enemy's mate in one is bounded to 6 checking candidates walked from a1 upward, so its verdict depends on where the pieces sit. A concrete position is judged lost for White and safe for Black once mirrored, though both contain the same mate. Across 28,227 game moves it misses 18 of 277 real mates in one. Quality only; chosen moves stay legal.\n3. **Info.** The manifest notes and the foundry.toml comment say 22,111 runtime bytes; the committed build produces 22,268.\n\n**Coverage rows**\n\n| Entry point | Status | Reason |\n| --- | --- | --- |\n| `play` | holds | Traced context, choice, mate early-return, second looks, and `playLegal` application; differential against `Rules.move` on every probed position |\n| `playAny` | holds | Seeded pick from the legal list, reverts on no move, applied by the same rules path |\n| `choose` | holds | Same path as `play` without applying; conversion branch and effort boundaries probed at 0, 1, 5,999, 9,000, 10,000 |\n| constructor (implicit) | holds | No arguments, no state, no owner; deploys on an empty chain with no external calls |\n| receive / fallback | holds | None exist; ABI confirms |\n| `Rules.move` (hook-facing library) | holds | Legality check then `playLegal`; status, check and insufficient-material flags corpus-verified |\n| Bitboard move generation, pins, castling, en passant, discovered check, `boardAfter` | holds | Traced each rule and verified against the chess.js corpora; colour symmetry of the engine's cheap scores confirmed on 360 positions |\n| `_convert` / `_mop` lone-king conversion | holds | Mate and stalemate verdicts traced; mirror symmetry exact on all 16 conversion cases |\n\n**Not reached:** a formal bound on the memory layout assumption in `legalMovesAndCheck` (the free-pointer rollback) beyond reasoning and corpus evidence, and the Judge and V5Probe test contracts exceeding EIP-170, which is already documented and only affects `forge build --sizes`.","treeHash":null,"usage":{"cachedInputTokens":2545823,"inputTokens":610,"model":"claude-fable-5-1","outputTokens":64845,"runtime":"claude","turns":46,"wallClockMs":1209778}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"c9743cd9807c4c3a","findings":[{"citation":"resolved","description":"Reported by the test writer (476978cf); reproduced, and widened: the gap is not only the blocked push. The fix for finding 10cde183 keeps in c.passers only the enemy pawns on their seventh rank whose square straight ahead is empty (src/ChessEngineV5.sol:300, `c.passers = white ? seventh & (empty << 8) : seventh & (empty >> 8);`), and _promotion (lines 463-464) charges PROMOTION only for the push square qb, skipping the pawn when qb is occupied. A seventh-rank pawn also promotes by capturing diagonally onto the last rank, and that square is never read. Two consequences: (1) a pawn whose push is blocked by our own piece is dropped from c.passers, so the full-look rule at line 175 does not apply and no move is charged for the coming queen; (2) a pawn whose push square is empty and covered by us is scored 0 at qb even when it can take a piece of ours on the adjacent last-rank square and queen there uncovered. In both cases the only thing the engine sees is the pawn's attack on the piece standing on the capture square (its own value through _loss, and only when _aware is true), never the 800 the queen adds, so any gain larger than that piece wins the choice. The contract header (lines 24-26) now promises that an enemy pawn a step from queening is a risk every move is scored against, at every strength; that claim does not hold for capture promotions. Medium, as the finding it completes: a broken guarantee under a specific condition that turns a won position (B+N+N v R+P) into a lost one (B+N v Q) for the trader who paid for strength, and strength 0 and 10,000 behave identically. The chosen move is always legal. Minimal fix that keeps the design: build c.passers from every enemy seventh-rank pawn that has a promotion move (push square empty, or a piece of ours on a diagonally adjacent last-rank square), and in _promotion score each reachable promotion square (the push square if empty, the two capture squares holding our pieces), charging PROMOTION plus the captured piece's value when the square is left unattacked by us, with the existing attacker/defender discount otherwise; in `_risk` the position after our move already tells which capture squares remain occupied by us.","line":463,"path":"src/ChessEngineV5.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {Rules} from \"src/Rules.sol\";\nimport {Bitboard} from \"src/Bitboard.sol\";\nimport {ChessEngineV5} from \"src/ChessEngineV5.sol\";\n\n/// The promotion term reads only the square straight ahead of an enemy pawn on its seventh rank (`_context` line\n/// 300 keeps only pawns with that square empty; `_promotion` lines 463-464 look at `qb`, the push square, alone).\n/// A pawn also queens by capturing diagonally onto the last rank. So the engine, at every strength and seed, grabs\n/// a rook with the knight that could have stepped off the capture square, and the pawn takes the other knight and\n/// queens with check, where nothing can take the new queen.\n///   A: White Kg1 Bb1 Nc1 Ng4, Black Ka8 Rh6 pawn b2 (push blocked by Bb1; b2xc1=Q+).\n///   B: White Kg1 Rb8 Nc1 Ng4, Black Ka7 Rh6 pawn b2 (push square b1 empty and covered by Rb8; b2xc1=Q+ anyway).\n/// Expected: a move after which every promotion of the pawn is illegal or lands where we can take the queen\n/// (Nd3, Ne2, Nb3, Na2 leave the pawn no move in A; in B Nd3 etc. leave only b1=Q, which Rb8 takes).\n/// Actual: Ng4xh6 on all 32 strength/seed pairs of each position, then b2xc1=Q+ wins a knight and a queen.\ncontract CapturePromotionTest is Test {\n    ChessEngineV5 engine;\n\n    function setUp() public {\n        engine = new ChessEngineV5();\n    }\n\n    function sq(string memory s) internal pure returns (uint16) {\n        bytes memory b = bytes(s);\n        return uint16(uint8(b[0]) - 97) + 8 * uint16(uint8(b[1]) - 49);\n    }\n\n    function put(uint256 board, string memory s, uint256 piece) internal pure returns (uint256) {\n        return board | (piece << (uint256(sq(s)) << 2));\n    }\n\n    function state(uint16 king) internal pure returns (uint32) {\n        return 0x80800000 | (uint32(king) << 8) | 0xff;\n    }\n\n    /// After the engine (`white` = its colour) moves, every legal promotion of the enemy pawn on `pawn` lands on a\n    /// square the engine can take at once.\n    function stopped(uint256 b, uint16 wk, uint16 bk, bool white, uint16 pawn, uint256 acc, uint256 seed)\n        internal\n        view\n        returns (bool, uint16)\n    {\n        uint64[8] memory none;\n        (uint32 mover, uint32 other) = white ? (state(wk), state(bk)) : (state(bk), state(wk));\n        (uint16 m, Rules.Played memory p) = engine.play(b, mover, other, !white, acc, seed, none, 1, 20);\n        (uint32 ws, uint32 bs) = white ? (p.mover, p.other) : (p.other, p.mover);\n        Bitboard.Pos memory after_ = Bitboard.fromBoard(p.board, ws, bs);\n        uint16[] memory replies = Bitboard.legalMoves(after_, !white);\n        for (uint256 i; i < replies.length; i++) {\n            uint16 r = replies[i];\n            if (r >> 6 != pawn) continue;\n            uint16 to = r & 63;\n            if (to >> 3 != 0 && to >> 3 != 7) continue;\n            Rules.Played memory q = Rules.move(p.board, p.other, p.mover, white, r);\n            (uint32 qw, uint32 qb) = white ? (q.other, q.mover) : (q.mover, q.other);\n            uint16[] memory ours = Bitboard.legalMoves(Bitboard.fromBoard(q.board, qw, qb), white);\n            bool retake;\n            for (uint256 j; j < ours.length; j++) {\n                if (ours[j] & 63 == to) retake = true;\n            }\n            if (!retake) return (false, m);\n        }\n        return (true, m);\n    }\n\n    function check(string memory title, uint256 b, uint16 wk, uint16 bk, bool white, uint16 pawn) internal view {\n        uint16[4] memory strengths = [uint16(0), 4_000, 9_000, 10_000];\n        uint256 failing;\n        uint16 last;\n        for (uint256 a; a < 4; a++) {\n            for (uint256 seed; seed < 8; seed++) {\n                (bool ok, uint16 m) = stopped(b, wk, bk, white, pawn, strengths[a], seed);\n                if (!ok) {\n                    failing++;\n                    last = m;\n                }\n            }\n        }\n        assertEq(\n            failing,\n            0,\n            string.concat(\n                title,\n                \": strength/seed pairs letting the pawn queen by capture (last engine move from \",\n                vm.toString(last >> 6),\n                \" to \",\n                vm.toString(last & 63),\n                \")\"\n            )\n        );\n    }\n\n    function test_blockedPushStillQueensByCapture() public view {\n        // White Kg1 Bb1 Nc1 Ng4; Black Ka8 Rh6 pawn b2\n        uint256 b = put(put(put(put(put(put(put(0, \"g1\", 6), \"b1\", 2), \"c1\", 3), \"g4\", 3), \"a8\", 14), \"h6\", 12), \"b2\", 9);\n        check(\"A as White\", b, sq(\"g1\"), sq(\"a8\"), true, sq(\"b2\"));\n    }\n\n    function test_blockedPushStillQueensByCaptureMirror() public view {\n        // Black Kg8 Bb8 Nc8 Ng5; White Ka1 Rh3 pawn b7\n        uint256 b = put(put(put(put(put(put(put(0, \"g8\", 14), \"b8\", 10), \"c8\", 11), \"g5\", 11), \"a1\", 6), \"h3\", 4), \"b7\", 1);\n        check(\"A as Black\", b, sq(\"a1\"), sq(\"g8\"), false, sq(\"b7\"));\n    }\n\n    function test_coveredPushSquareStillQueensByCapture() public view {\n        // White Kg1 Rb8 Nc1 Ng4; Black Ka7 Rh6 pawn b2: b1 is empty and Rb8 covers it, c1 is not covered\n        uint256 b = put(put(put(put(put(put(put(0, \"g1\", 6), \"b8\", 4), \"c1\", 3), \"g4\", 3), \"a7\", 14), \"h6\", 12), \"b2\", 9);\n        check(\"B as White\", b, sq(\"g1\"), sq(\"a7\"), true, sq(\"b2\"));\n    }\n}","reproduction":"Side states are 0x80800000 | king << 8 | 0xff (no castling, no en passant); previous all zero, gameNo 1, quiet 20; strengths 0, 4000, 9000, 10000; seeds 0..7. Position A (the tester's): White Kg1 (6) Bb1 (1) Nc1 (2) Ng4 (30), Black Ka8 (56) Rh6 (47) pawn b2 (9), White to move; board = (6<<24)|(2<<4)|(3<<8)|(3<<120)|(14<<224)|(12<<188)|(9<<36). Expected: a move after which every legal promotion of the b2 pawn is impossible or lands where White can retake (Nc1-d3/e2/b3/a2 leave the pawn no move; White keeps B+N+N v R+P). Actual: play(...) returns Ng4xh6 (30<<6|47 = 1967) on all 32 strength/seed pairs; then b2xc1=Q+ is legal, gives check and no White piece can take c1, leaving B+N v Q. The colour mirror (Black Kg8 Bb8 Nc8 Ng5, White Ka1 Rh3 pawn b7, Black to move) fails the same way with Ng5xh3 (38<<6|23) on all 32 pairs. Position B shows the push square alone is read: White Kg1 Rb8 (57) Nc1 Ng4, Black Ka7 (48) Rh6 pawn b2, b1 empty and covered by the rook. _promotion scores b1 at 0 (rook attacks it, undefended), c.passers != 0, every move is looked at, and the engine still plays Ng4xh6 on all 32 pairs; b2xc1=Q+ follows and c1 cannot be retaken. Ran the attached test (test/scratch/CapturePromotion.t.sol): all three tests fail on this tree with 32 failing pairs each; the tester's proof .imd/reads/proofs/Proof_476978cfaf3d.t.sol fails here too (first failure at strength 4000, seed 0, both colours).","severity":"medium","snippet":"                uint64 qb = c.white ? pb >> 8 : pb << 8;\n                if ((own | opp) & qb != 0) continue; // blocked","title":"Promotion threat reads only the square straight ahead: an enemy pawn that queens by capture is unscored, so the engine grabs material and lets b2xc1=Q+ through at every strength"}],"hash":"0f42945ac0326cbfbb33f19b68eddfa83594e2ec6f3efff1d4ac2bafcf2e55f0","nodeId":"df8b6817-46f8-4efb-88b6-fa091aa757ba","outcome":"completed","summary":"The review is complete. The findings file holds one outstanding finding; everything else from the last round is settled.\n\n**Settled from my previous round**\n\n- **Enemy pawn about to promote (medium, 10cde183): fixed for the straight push.** My proof now passes on all three positions at every strength and seed. The new passers term, the full-look rule and the second-look charge all trace correctly, and the mirror cases in the new passers test pass.\n- **Mate guard walk-order dependence (low, 5088cfe5): fixed.** The second look now calls the unbounded mate search at line 563, and the author's mirror test returns the mate verdict from both orientations.\n- **Strength.fromShare overflow (low, 916b9526): fixed.** My proof passes. The early cap at paid >= depth and the shift by 17 bits keep at least 222 bits on both operands, so the curve is unchanged wherever it did not revert.\n- **Seed trust assumption (info, 7e5e89e6): documented** in the header at lines 28 to 31, which is all the pure engine can do. Settled.\n- **Stale size comment (info, 318c54ed): dropped.** launch.json now states 23,220 bytes, which matches the build. Only the foundry.toml comment still says 22,111, and that file is outside every write path, so I agree with the author that it is not actionable here.\n\n**One outstanding finding, medium, with proof**\n\nThe promotion fix reads only the square straight ahead of a seventh-rank pawn. A pawn whose push is blocked is dropped from the passers set, and a pawn whose push square is covered is scored as harmless, even when it can capture a piece of ours on the adjacent last-rank square and queen there untouched. In the tester's position (White Kg1 Bb1 Nc1 Ng4 against Ka8 Rh6 pawn b2) and in my variant with b1 empty and covered by a rook, the engine plays Ng4xh6 on all 32 strength/seed pairs and then b2xc1=Q+ wins a knight and a queen. The header's claim that such a pawn is scored against every move does not hold for capture promotions. The embedded proof fails on this tree with 32 failing pairs per test, and the tester's own proof fails the same way.\n\n**Checks run**: forge build, forge build --sizes (23,220 runtime, 1,356 under EIP-170), the full suite (59 tests, 0 failures), all four attached proofs and my own probes. My unblocking probes (a bishop or rook blocker stepping off the promotion square) did not reproduce, so no finding was made of them. The scratch directory was removed after the run.","treeHash":null,"usage":{"cachedInputTokens":681395,"inputTokens":290,"model":"claude-fable-5-1","outputTokens":19375,"runtime":"claude","turns":17,"wallClockMs":394137}},{"artifacts":[],"attempt":1,"bundleHash":"86db03aef0aa22a86306c01f51959039b9bf8aab93bb1c138cbfe3ad8ddad495","device":"45aa937328087de3","findings":[],"hash":"3984f40aea36d0ac2716b1d7f14ab7a570ee201ada579d217314d40480bb8bc6","nodeId":"e9a1ecfb-ab87-4cf3-b7cc-7eb8f9b09dfd","outcome":"completed","summary":"The revision is complete. Only launch.json changed.\n\n**What I found.** The accepted manifest already named the single contract correctly: ChessEngineV5 with an empty constructor argument list, no owner, no token or pool. Its notes, however, stated a stale runtime size of 23,220 bytes. The accepted tree now compiles to a different size after the promotion-threat and mate-guard revisions recorded in ADAPTATION.md, and the brief's own figure of 22,268 bytes predates those revisions too.\n\n**What I changed.** I corrected the size statement in the manifest notes to match the actual rebuild and added one sentence noting that the engine has no link references, since the four rule libraries are internal and inlined.\n\n| Figure | Value |\n|---|---|\n| Runtime bytes | 23,339 |\n| Initcode bytes | 23,365 |\n| Margin under EIP-170 | 1,237 |\n\n**Verification.**\n- Manifest shape checked: exactly kind, contracts and notes, one valid identifier, all string arguments, notes at 829 characters.\n- The protected Contracts test rehearsed in a scratch copy against the built initcode with a simulated factory and chain id 1. It passed, confirming no forbidden opcodes and size under the limit.\n- The full suite ran with the verifier's fuzz seed: all 38 tests across 11 suites passed.\n- The build emits only lint warnings about unsafe typecasts in existing source, which is outside this task's write path.\n\nThe scratch directory has been removed and git status shows only launch.json modified.","treeHash":"9fd66f74a6e893b1e5d207606b6eb8b4f98d6f3e","usage":{"cachedInputTokens":184465,"inputTokens":226,"model":"claude-fable-5-1","outputTokens":4045,"runtime":"claude","turns":8,"wallClockMs":180246}},{"artifacts":[],"attempt":1,"bundleHash":"e1e2088924c0da29b1ccacac6da30318ca93afaa49510553bc62684a55c0b34a","device":"38c0c4e8e4438177","findings":[],"hash":"3d012ad8c2c4c48936f57c00359ab0fa4cf240b23bedb4e7a5d06d74c5b34bfd","nodeId":"e9a1ecfb-ab87-4cf3-b7cc-7eb8f9b09dfd","outcome":"completed","summary":"Updated only [launch.json](/home/imd-worker2/.identitymd/work/66350eb4-e6c5-4f41-bb8f-1d72a8599095/e9a1ecfb-ab87-4cf3-b7cc-7eb8f9b09dfd/launch.json), retaining `ChessEngineV5` with `constructorArgs: []` and correcting runtime size to 22,268 bytes.\n\nManifest checks passed. `forge build` succeeded; `forge test` passed all 28 tests with the supplied fuzz seed.","treeHash":"bc209246972d0db6774adfc60384bc34466cae47","usage":{"cachedInputTokens":794112,"inputTokens":39204,"model":"gpt-6-astra","outputTokens":5429,"runtime":"codex","turns":7,"wallClockMs":299539}},{"artifacts":[],"attempt":1,"bundleHash":"80256c1bfe3c5e5356ef0e2675a31d1db54aab1c0819f54034b216e20f740fae","device":"2f1d693f218c1c18","findings":[{"description":"The fix for review finding 10cde183 scores an enemy pawn a step from promotion only when the square straight ahead is empty (`_context`: `c.passers = ... seventh & (empty << 8)`), and `_promotion` skips a pawn whose square ahead is occupied (`if ((own | opp) & qb != 0) continue;`, line 464). A pawn on its seventh rank promotes just as well by capturing diagonally onto the last rank. When the push is blocked, `c.passers` is 0, so no move is charged for the coming queen and the full-look rule (`c.passers != 0` at line 175) does not apply. The piece standing on the capture square is still scored as attacked by a pawn (lossA = its value), but the queen that comes with the capture (PROMOTION = 800) is not. So the engine trades it for any gain larger than the piece alone. The contract header now says an enemy pawn a step from queening is a risk every move is scored against, at every strength. That claim does not hold for capture promotions.","line":300,"path":"src/ChessEngineV5.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {Rules} from \"src/Rules.sol\";\nimport {Bitboard} from \"src/Bitboard.sol\";\nimport {ChessEngineV5} from \"src/ChessEngineV5.sol\";\n\n/// An enemy pawn on its seventh rank whose square ahead is blocked can still queen by capturing. The engine's\n/// promotion term (`_context` passers / `_promotion`) only considers the push straight ahead, so it takes a rook\n/// elsewhere and lets the pawn take a knight and queen with check, where nothing can take the new queen.\n/// White Kg1 Bb1 Nc1 Ng4, Black Ka8 Rh6 pawn b2, White to move: every strength and seed plays Ng4xh6, then b2xc1=Q+.\n/// Moving the knight off c1 (Nd3, Ne2, Nb3, Na2) leaves the pawn with no move at all.\ncontract CapturePromotionProofTest is Test {\n    ChessEngineV5 engine;\n\n    function setUp() public {\n        engine = new ChessEngineV5();\n    }\n\n    function sq(string memory s) internal pure returns (uint16) {\n        bytes memory b = bytes(s);\n        return uint16(uint8(b[0]) - 97) + 8 * uint16(uint8(b[1]) - 49);\n    }\n\n    function put(uint256 board, string memory s, uint256 piece) internal pure returns (uint256) {\n        return board | (piece << (uint256(sq(s)) << 2));\n    }\n\n    function state(uint16 king) internal pure returns (uint32) {\n        return 0x80800000 | (uint32(king) << 8) | 0xff;\n    }\n\n    /// After the engine (`white` = its colour) moves, every legal promotion of the enemy pawn on `pawn` lands on a\n    /// square the engine can take at once.\n    function stopped(uint256 b, uint16 wk, uint16 bk, bool white, uint16 pawn, uint256 acc, uint256 seed)\n        internal\n        view\n        returns (bool, uint16)\n    {\n        uint64[8] memory none;\n        (uint32 mover, uint32 other) = white ? (state(wk), state(bk)) : (state(bk), state(wk));\n        (uint16 m, Rules.Played memory p) = engine.play(b, mover, other, !white, acc, seed, none, 1, 20);\n        (uint32 ws, uint32 bs) = white ? (p.mover, p.other) : (p.other, p.mover);\n        Bitboard.Pos memory after_ = Bitboard.fromBoard(p.board, ws, bs);\n        uint16[] memory replies = Bitboard.legalMoves(after_, !white);\n        for (uint256 i; i < replies.length; i++) {\n            uint16 r = replies[i];\n            if (r >> 6 != pawn) continue;\n            uint16 to = r & 63;\n            if (to >> 3 != 0 && to >> 3 != 7) continue;\n            Rules.Played memory q = Rules.move(p.board, p.other, p.mover, white, r);\n            (uint32 qw, uint32 qb) = white ? (q.other, q.mover) : (q.mover, q.other);\n            uint16[] memory ours = Bitboard.legalMoves(Bitboard.fromBoard(q.board, qw, qb), white);\n            bool retake;\n            for (uint256 j; j < ours.length; j++) {\n                if (ours[j] & 63 == to) retake = true;\n            }\n            if (!retake) return (false, m);\n        }\n        return (true, m);\n    }\n\n    function check(uint256 b, uint16 wk, uint16 bk, bool white, uint16 pawn) internal view {\n        uint16[3] memory strengths = [uint16(4_000), 9_000, 10_000];\n        for (uint256 a; a < 3; a++) {\n            for (uint256 seed; seed < 8; seed++) {\n                (bool ok, uint16 m) = stopped(b, wk, bk, white, pawn, strengths[a], seed);\n                assertTrue(\n                    ok,\n                    string.concat(\n                        white ? \"as White\" : \"as Black\",\n                        \", strength \",\n                        vm.toString(strengths[a]),\n                        \", seed \",\n                        vm.toString(seed),\n                        \": engine move from \",\n                        vm.toString(m >> 6),\n                        \" to \",\n                        vm.toString(m & 63),\n                        \" lets the pawn queen by capture\"\n                    )\n                );\n            }\n        }\n    }\n\n    function test_capturePromotionIsStopped() public view {\n        // White Kg1 Bb1 Nc1 Ng4; Black Ka8 Rh6 pawn b2\n        uint256 b = put(put(put(put(put(put(put(0, \"g1\", 6), \"b1\", 2), \"c1\", 3), \"g4\", 3), \"a8\", 14), \"h6\", 12), \"b2\", 9);\n        check(b, sq(\"g1\"), sq(\"a8\"), true, sq(\"b2\"));\n    }\n\n    function test_capturePromotionIsStoppedInTheMirror() public view {\n        // Black Kg8 Bb8 Nc8 Ng5; White Ka1 Rh3 pawn b7\n        uint256 b = put(put(put(put(put(put(put(0, \"g8\", 14), \"b8\", 10), \"c8\", 11), \"g5\", 11), \"a1\", 6), \"h3\", 4), \"b7\", 1);\n        check(b, sq(\"a1\"), sq(\"g8\"), false, sq(\"b7\"));\n    }\n}","reproduction":"White Kg1 Bb1 Nc1 Ng4, Black Ka8 Rh6 pawn b2, White to move (no castling, no en passant; side state 0x80800000|king<<8|0xff), play(..., black=false, strength, seed, previous=0, gameNo=1, quiet=20). Expected: the knight leaves c1 (Nd3/Ne2/Nb3/Na2), after which the b2 pawn has no legal move (b1 is blocked, a1 and c1 are empty), and White stays ahead B+N+N against R+P. Actual: at strengths 0, 4000, 9000 and 10000, seeds 0-7, the engine plays Ng4xh6 (square 30 to 47), then b2xc1=Q+ is legal, gives check and nothing can take the queen. White is left with B+N against Q. The colour mirror (Black Kg8 Bb8 Nc8 Ng5, White Ka1 Rh3 pawn b7, Black to move) fails the same way with Ng5xh3. The proof checks that after the engine move every legal promotion of the pawn lands on a square the engine can retake. It fails on this tree and passes once capture promotions onto our pieces are scored (or the knight is otherwise moved off c1).","severity":"medium","title":"Promotion threat ignores a pawn that queens by capture: engine grabs material and lets bxc1=Q+ through at every strength"},{"description":"The brief says ChessEngineV5 has 22,268 runtime bytes. launch.json notes and the foundry.toml comment say 22,111. The committed build, which includes the reviewed promotion-threat fix, deploys 23,220 runtime bytes, still 1,356 under EIP-170. The size is not a defect. The test that pinned the brief figure now checks that the runtime equals the committed artifact and fits EIP-170. Whoever writes the manifest should update the stated figure.","line":9,"path":"launch.json","reproduction":"forge test --match-test test_deploysWithNoArgumentsUnderTheLimit: deployed runtime length is 23220 (the brief states 22268; the launch.json notes state 22111).","severity":"info","title":"Runtime size in the brief, launch.json notes and foundry.toml comment is stale"}],"hash":"466d2cde14d530cce9fc22d67d2f72a941802536a6610df829634730cd07fc1e","nodeId":"f671254d-5b68-498c-9d96-7fef3deb069f","outcome":"completed","summary":"I found one new defect in the author's latest fix and reported it. With the verifier's fuzz seed, `forge build` succeeds and `forge test` passes: 59 tests in 15 suites, none failing.\n\n**What changed in my tests.** After my last round, the author fixed several review findings, including one about enemy pawns about to promote. That made ChessEngineV5 grow from 22,268 to 23,220 runtime bytes, so my launch test, which still expected the brief's 22,268, was the only failure. It is now `test_deploysWithNoArgumentsUnderTheLimit` in `test/EngineV5Launch.t.sol`. It checks that the deployed code matches the committed build exactly and is within the 24,576-byte limit, rather than checking a fixed size. My other test files are unchanged and still pass.\n\n**New finding (medium, with a proof test)** in `.imd-findings.json`:\n- **What's wrong:** the promotion fix only watches an enemy pawn whose square straight ahead is empty (`src/ChessEngineV5.sol:300`, and the \"blocked\" skip at `:464`). If that square is blocked, the pawn can still promote by capturing diagonally, and the engine doesn't count the new queen.\n- **Failing position:** White Kg1 Bb1 Nc1 Ng4, Black Ka8 Rh6 pawn b2, White to move.\n- **Expected:** the knight leaves c1, after which the pawn has no legal move.\n- **Actual:** at every strength from 0 to 10,000 and seeds 0–7, the engine takes the rook with Ng4xh6. Black then plays b2xc1=Q+, and nothing can take the new queen.\n- **Proof:** the swapped-colour version of the position fails the same way. The proof test fails on the current code for this reason and passes once the engine moves the knight off c1.\n- This contradicts the engine's own header comment, which says a pawn about to promote is scored against every move.\n\n**Info finding:** the size is stated wrongly in three places: the brief says 22,268 bytes, while `launch.json` notes and the `foundry.toml` comment say 22,111. The real figure is 23,220. Neither file is mine to edit.\n\n`.imd-findings.json` is in the repository root but git doesn't track it, because `.git/info/exclude` lists it. I assume the submission collects it separately.","treeHash":"031b1e76a306772ea154e7469d3fb3d2bce85d24","usage":{"cachedInputTokens":967662,"inputTokens":38,"model":"claude-opus-5-5","outputTokens":23432,"runtime":"claude","turns":22,"wallClockMs":405182}},{"artifacts":[],"attempt":1,"bundleHash":"6a984fff8f5d881923383e24d89d8a24cff7e5dfba7def467b2c75e9b660652d","device":"0ef0dfae5a05e4be","findings":[],"hash":"4ac1521782c09d38cc010e143da31e081ac861174ed05827df3c95aa57f3cca8","nodeId":"03f63613-300c-4705-8d8f-e29ab832ef0d","outcome":"completed","summary":"The finding reproduced and is fixed. The reviewer's proof fails on the starting tree (32 failing strength/seed pairs in each of its three tests) and passes on the result.\n\n**What was wrong.** In `src/ChessEngineV5.sol`, the promotion threat kept only seventh-rank pawns with an empty push square and scored only that square. A pawn queening by capturing diagonally onto the last rank was never charged, so the engine took material and let b2xc1=Q+ through at every strength.\n\n**What changed.**\n- `c.passers` is now every enemy pawn on its seventh rank, whether or not it has a promotion move before ours. The position after our move decides which squares it can reach, which also covers a pawn that gets a capture square only because our knight landed on it.\n- `_promotion` scores each square the pawn can queen on after our move: the square ahead when empty, and the diagonal squares holding a piece of ours other than the king. A capture square costs the piece taken on top of the queen when we leave it unattacked. When we can retake an undefended queen, the capture costs the piece less the pawn. The old attacker/defender discount applies otherwise, through a split-out helper, and the promoting pawn no longer counts as a defender of its own capture square.\n- Runtime is 23,339 bytes, 1,237 under the EIP-170 limit.\n\n**Tests.** `test/EngineV5Passers.t.sol` gains the reviewer's two positions as White and in their colour mirrors over four strengths and eight seeds, a blocked-pawn position where the previous engine plays Nd3xc1, and a second-look probe of four moves whose hand-computed scores match the engine. The stop check now walks every legal promotion of the pawn rather than one given push. A scratch copy of the previous engine fails the three new play tests and passes the rest, so each pins the change it describes. The self-play fingerprint in `test/EngineV5Games.t.sol` was updated as its comment asks.\n\n**Verification.** This machine killed the whole suite for memory (exit 137 at 8, 4 and 1 thread), so suites were run one at a time with the verifier's seed. 32 of 38 tests passed with zero failures, including self-play with the new fingerprint, the engine, conversion, endings, profile, strength and passer suites. The six corpus tests in `Bitboard.t.sol` and `RulesRandom.t.sol` did not complete here: one was killed and one range alone was still running at a 400-second timeout. They test `src/Bitboard.sol` and `src/Rules.sol`, which did not change this round, and passed in the previous round on the same sources.\n\n**Records.** ADAPTATION.md lists the change, the reasoning for the slightly wider passer set, the new self-play figures and the exact validation outcome. The response for finding be477030 is written to .imd-responses.json with verdict fixed. No change was made to launch.json, foundry.toml or dependencies, and nothing was committed.","treeHash":"4c65b4a295faa6148a5cb0dafa68d2546c60754f","usage":{"cachedInputTokens":2303453,"inputTokens":802,"model":"claude-fable-5-1","outputTokens":55042,"runtime":"claude","turns":47,"wallClockMs":3765246}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"505a745a77612e11","findings":[{"citation":"resolved","description":"The manifest notes (and the matching comment on foundry.toml line 11: \"# ChessEngineV5 is over Ethereum's 24,576-byte limit at 20,000 runs; at 200 it is 22,111 bytes. One setting for every\") claim ChessEngineV5 is 22,111 runtime bytes at 200 optimizer runs. The committed source with the committed settings (solc 0.8.26, cancun, optimizer 200 runs, via_ir, bytecode_hash none, cbor_metadata false) produces 22,268 runtime bytes and 22,294 initcode bytes, as the task statement itself says and as ADAPTATION.md records. The contract is still 2,308 bytes under the 24,576-byte EIP-170 limit, so deployment is not blocked and no permission or safety property depends on the figure. Only the explanatory text is wrong: a reader of the manifest or of the published source tree gets a size that does not match the signed artifact. Fix: replace 22,111 with 22,268 in the launch.json notes (the manifest step owns that file); the foundry.toml comment is a configuration file outside the review's write paths and is reported here only so the author can correct it in the same pass.","line":9,"path":"launch.json","reproduction":"forge build --sizes (project settings unchanged) prints `ChessEngineV5 | 22,268 | 22,294 | 2,308 | 26,858`; out/ChessEngineV5.sol/ChessEngineV5.json deployedBytecode.object is 22,268 bytes; test/EngineV5.t.sol test_legalChoicesMatesAndGas logs `runtime bytes: 22268`. Expected: notes say 22,268. Actual: notes say 22,111 (`grep -n 22,111 launch.json foundry.toml` matches launch.json:9 and foundry.toml:11).","severity":"info","snippet":"  \"notes\": \"IMDuel's chess engine on Ethereum (chain 1), deployed alone before the hook launch: no token, pool, distributor, owner, admin or upgrade path; nothing is called after deployment. ChessEngineV5 is pure: play() chooses a move for a position at a strength (0-10,000 basis points) and applies it by the rules (Rules library, Bitboard library), playAny() picks a seeded legal move. It holds no state and no funds. The project compiles at 200 optimizer runs (foundry.toml) to keep it under the 24,576-byte runtime limit (22,111 bytes).\"","title":"launch.json notes state a stale runtime size (22,111 bytes); the committed ChessEngineV5 compiles to 22,268 bytes"}],"hash":"952a38d730a3071e54c3fd823fa9bca413eca525b43c9125111ad2f72d8b9b4e","nodeId":"57ee9bd1-128b-422d-bb63-ac65324f6155","outcome":"completed","summary":"Done. The tree is unchanged (no tracked file modified, scratch test removed) and `.imd-findings.json` holds one finding.\n\n**Outcome.** The permission surface of ChessEngineV5 holds. The contract has no owner, no storage, no constructor arguments, no external calls, no payable path and no fallback. Nothing in it can be initialized, upgraded, paused or redirected, so the Access Control, Trust Gap and Asymmetry checklists find no bypass. The one substantiated defect is documentary: the manifest notes carry a stale runtime size.\n\n**Finding recorded** (severity info, `launch.json` line 9): the notes say 22,111 runtime bytes, but the committed source at the committed settings builds to 22,268 bytes, as the task statement says. The same stale number sits in the comment on line 11 of `foundry.toml`. Reproduction is `forge build --sizes`. It blocks nothing, since the engine is still 2,308 bytes under the EIP-170 limit.\n\n**What I verified, with evidence**\n\n- `forge build` succeeds and `forge test` passes all 28 tests in 10 suites with zero failures or skips. The two contracts over the size limit are test-only harnesses not in the manifest.\n- A scratch Foundry test (run, passed, then deleted) deployed the exact creation code by CREATE2 from a factory address on chain id 1 with no arguments and no other contract present, then called all three entry points at once with no initialization. ETH transfers and calls to `owner()` or `initialize()` revert. No reachable DELEGATECALL, CALLCODE, SELFDESTRUCT, CREATE, CREATE2, CALL or SSTORE in the runtime.\n- `play` and `choose` return the same move, and `play`'s result equals the checked `Rules.move` result for both colours through 30 plies, including via the `view` interface the hook will use. `playAny` also always returns a legal move.\n- The shared position passed to `Rules.playLegal` is never written during choice: every trial move writes the scratch position `c.n`, so the unchecked play path cannot apply a different position than the one the move was chosen from.\n- Manifest: exactly the keys kind, contracts, notes; one contract name of 13 characters; empty constructor list matching the implicit constructor; notes 529 characters. No owner argument is needed because no owner exists, so the factory-as-sender trap cannot apply.\n- Per-choice gas in the engine test averages 228k with a maximum of 598k over 3,968 positions.\n\n**Coverage rows**\n\n| Entry point | Result | Reason |\n|---|---|---|\n| constructor (implicit) | holds | no arguments, no roles, no external calls, no storage written |\n| `play` | holds | public by design, pure, strength above 10,000 reverts, result equals checked rules |\n| `playAny` | holds | public by design, pure, seeded legal move, same mover/other convention as `play` |\n| `choose` | holds | same choice as `play` without applying it, not in the hook interface by design |\n| `receive` / `fallback` | holds | absent, ETH and unknown selectors revert |\n| `launch.json` manifest | finding 1 | schema-valid, args correct, notes carry stale size |\n\n**Trust assumptions to record, not defects.** The engine enforces nothing about who calls it or with what strength, board, seed or history. Those guarantees belong entirely to the future hook, which must pass positions it produced itself and cap strength as it intends.\n\n**Not reached in my area.** Nothing. Outside my area I did not re-audit the scoring heuristics or the `Strength` library overflow that ADAPTATION.md already documents; `Strength` is not linked into the deployed engine, so it is not a launch defect.","treeHash":null,"usage":{"cachedInputTokens":832257,"inputTokens":290,"model":"claude-fable-5-1","outputTokens":17465,"runtime":"claude","turns":24,"wallClockMs":288262}},{"artifacts":[],"attempt":1,"bundleHash":"ca200c2c14a0cacc9992302ac1f2797b3fa0c222628fa0fb72e9ec0c0018fc62","device":"72ae9b5bbd1a54b6","findings":[{"description":"The brief states ChessEngineV5 has 22,268 runtime bytes; launch.json's notes and the foundry.toml comment (line 11) say 22,111. The committed build (solc 0.8.26, cancun, 200 runs, via_ir, bytecode_hash none) gives 23,339 runtime / 23,365 initcode bytes after the reviewed promotion-threat fixes (ADAPTATION.md line 21). It is still 1,237 bytes under EIP-170, so deployment is unaffected, but the manifest notes describe a different build than the one launched. test/EngineV5Launch.t.sol checks the committed build's runtime hash and the EIP-170/EIP-3860 limits rather than asserting either stale number.","line":9,"path":"launch.json","reproduction":"forge build --sizes: ChessEngineV5 runtime 23,339 bytes (expected per brief 22,268; per launch.json notes 22,111). The notes text should be updated by the manifest step to the committed figure.","severity":"info","title":"Stated runtime size of ChessEngineV5 is stale in the brief, launch.json notes and foundry.toml comment"}],"hash":"a6bb738649c6ba4cd4b2c18d9a4022425782939e5a069f4b7a55fd4352b9de65","nodeId":"f671254d-5b68-498c-9d96-7fef3deb069f","outcome":"completed","summary":"The test suite passes against the engine as revised in the third round. Only one comment changed in the tests, and I filed one info-level finding.\n\n**Test run:** `forge build` succeeds and `ChessEngineV5` is 23,339 runtime bytes. That is under the 24,576-byte EIP-170 limit. `forge build --sizes` still exits non-zero, but only because some test-only contracts (`Judge`, `V5Probe` and others) are over the limit; none of them is in `launch.json`. The full `forge test` with the verifier's seed passed all 63 tests in 15 suites, with no failures or skips. That includes the four invariants over random call sequences, the failure-path and launch tests, the chess.js comparison corpora, and the implementer's new tests for the pawn-promotion fix.\n\n**What changed:**\n- **`test/EngineV5Launch.t.sol`:** one comment updated. It quoted the engine's previous size (23,220 bytes); it now gives 23,339. The test checks the committed build itself and the deploy size limits, not a fixed byte count, so it already covered the new engine without other edits.\n- **`.imd-findings.json`** (repository root, info): the brief says `ChessEngineV5` has 22,268 runtime bytes, and the `launch.json` notes and the `foundry.toml` comment say 22,111. The committed build is 23,339 bytes after the reviewed pawn-promotion fixes. Deployment is unaffected, but the manifest describes a different build from the one being launched. Only the manifest step can correct those notes, since `launch.json` and `foundry.toml` are outside my write paths. I didn't write a test that asserts either old number.\n\nI found no new defect that needed a proof test. The rest of the earlier accepted tests are unchanged.","treeHash":"76496d90e03bc10edcfe02d30a6cbd091ccfe5b2","usage":{"cachedInputTokens":282623,"inputTokens":17,"model":"claude-opus-5-5","outputTokens":4562,"runtime":"claude","turns":10,"wallClockMs":300827}},{"artifacts":[],"attempt":1,"bundleHash":"876cfea906325b7ef82d119056b8e9a887b267738ea17f95f332a18cdd436ea3","device":"8109087d965ddf6c","findings":[{"description":"The manifest's notes (and the comment at foundry.toml:11) say ChessEngineV5 compiles to 22,111 runtime bytes at 200 optimizer runs. The committed sources with the committed settings (solc 0.8.26, cancun, via_ir, 200 runs, bytecode_hash none, cbor_metadata false) produce 22,268 runtime bytes and 22,294 init-code bytes, matching the brief. Deployment is unaffected (2,308 bytes below EIP-170), but the manifest that goes to the final review and deployment handoff states a figure that does not describe the bytes being deployed. Already noted by an earlier contributor in ADAPTATION.md (finding 61f8e48c); the notes themselves are still uncorrected. Not fixable from the test paths.","line":9,"path":"launch.json","reproduction":"forge build; the runtime length of out/ChessEngineV5.sol/ChessEngineV5.json deployedBytecode is 22,268 bytes. test/EngineV5Launch.t.sol::test_deploysWithNoArgumentsAtTheBriefsSize deploys the exact init code by CREATE2 with no arguments and zero value on chain 1 and asserts code.length == 22,268. Expected (per launch.json notes): 22,111. Actual: 22,268.","severity":"info","title":"launch.json notes and foundry.toml comment state a stale ChessEngineV5 runtime size (22,111 bytes; actual 22,268)"}],"hash":"b22de11a225f2663d1cb7a8864f61d95f695f96aada85022bf351d7d100828fb","nodeId":"f671254d-5b68-498c-9d96-7fef3deb069f","outcome":"completed","summary":"I added four test files under `test/` and changed no source or config files. `forge build` succeeds, and `forge test` with the verifier's seed passes all 53 tests in 14 suites (about 2.5 minutes). I found no behavioural defect in the engine or its rule libraries.\n\n**What the new tests cover**\n- **`test/EngineV5Launch.t.sol` (deployment):** deploys the exact compiled code the way the launch does: CREATE2, no constructor arguments, zero ETH, chain 1, in one call. It confirms:\n  - The runtime is 22,268 bytes, as the brief says.\n  - The deployed code matches the build output, and the engine works straight away with no setup step.\n  - Failure paths: deploying with ETH fails, deploying twice at the same address fails, and sending ETH or calling with an unknown function, cut-short input or malformed arguments is rejected.\n  - Every function works as a read-only call and no storage is ever written.\n  - The deployed code has no reachable instruction that writes storage, sends value, calls out, or creates or destroys contracts.\n- **`test/EngineV5Failures.t.sol` (failure paths):**\n  - Checkmate (both colours) and stalemate make `play`, `choose` and `playAny` revert with \"no legal move\" at every strength.\n  - A strength above 10,000 reverts, including on the lone-king endgame path. Exactly 10,000 is accepted.\n  - The rules refuse illegal moves: from an empty square, the opponent's piece, onto your own piece, through pieces, castling through check, moving into check, moving a pinned piece, ignoring a check, and an out-of-range move value.\n  - Extreme inputs (largest seed, quiet count and game number, a full move history) still produce legal moves.\n  - `playAny` plays every legal move exactly once over consecutive seeds, and a forced move is always found.\n- **`test/EngineV5Fuzz.t.sol` (fuzz):**\n  - On positions reached by random legal moves, the engine's move is legal, `play` gives the same result as the rules, `choose` picks the same move, and repeat calls give the same answer.\n  - A game played to its end can't be continued.\n  - At full strength the engine always takes a mate in one. Random play reached a mate-in-one position only 9 times in 600, so this test builds random back-rank mates for either colour instead.\n- **`test/EngineV5Invariant.t.sol` (invariants):** the engine holds no ETH or tokens, but I still wrote random-sequence invariant tests. They play games the way the hook will (engine moves, fallback moves, over-cap calls, the hook's draw rules and repetition memory), 64 runs of 80 calls each. After every sequence they check:\n  - Every move is legal and applied exactly as the rules apply it.\n  - A game with a legal move never reverts, and a finished game never continues.\n  - The board stays a valid position, with one king per side matching its recorded square and no pawn on a back rank.\n  - No piece appears or disappears without a capture.\n  - The engine's balance, code and storage never change.\n\n**Reported in `.imd-findings.json` (info only):** the notes in `launch.json` (line 9) and the comment in `foundry.toml` still say the engine is 22,111 bytes; it is actually 22,268. This doesn't affect deployment, but the manifest going to review states the wrong figure, and I can't correct it from the test folder. An earlier contributor flagged the same thing in `ADAPTATION.md`.","treeHash":"a0cd78e7b3576cc9ff1ae6b8079eea723ca21f77","usage":{"cachedInputTokens":1687782,"inputTokens":41,"model":"claude-opus-5-5","outputTokens":39524,"runtime":"claude","turns":28,"wallClockMs":805394}},{"artifacts":[],"attempt":1,"bundleHash":"c29d6ad33b70a9deee82176d2aec50ed797af5007e6b30ef67718b0a1191089e","device":"9df7d5d52e83c572","findings":[],"hash":"bcde03234f132f7b3473538efde58b78e37e71ff945dec77c0c1c21348434a28","nodeId":"03f63613-300c-4705-8d8f-e29ab832ef0d","outcome":"completed","summary":"The responses file is excluded by the harness's own `.git/info/exclude` entry, alongside `.imd/` and `test/scratch/`, so that is the expected place for it and nothing more is needed from me. The work is complete.\n\n## Recap\n\n**Outcome.** The reopened defect is fixed and the reviewer's proof passes. Both low findings are fixed as well, the seed trust assumption is documented, and the stale size comment is answered as out of scope. The delivered suite passes with the verifier's fuzz seed, and the engine still deploys with no constructor arguments.\n\n**What changed**\n\n- `src/ChessEngineV5.sol`: a new `_promotion` scorer charges a queen-for-pawn loss against every move that neither captures, blocks, nor covers an enemy pawn's promotion square. It runs in the cheap pass and in second looks, and such a pawn makes the engine look at every move. The second-look mate guard now searches all enemy checks, which removes the mirror asymmetry at a cost of roughly 300 gas on average in self-play. Two header paragraphs document the new term and the seed trust assumption.\n- `src/Strength.sol`: `fromShare` returns the cap when the payment is the whole depth or more, and shifts both values by 17 bits when scaling would overflow. The curve is unchanged wherever it did not revert.\n- Tests: a new `test/EngineV5Passers.t.sol` covers the three reported positions and their colour mirrors at four strengths, an unstoppable pawn, and the mirrored mate guard. `test/Strength.t.sol` now tests the fixed values instead of pinning the panic. The self-play golden fingerprint is updated as that test's comment requires.\n- `ADAPTATION.md` records each change, the disposition of every finding, and the validation. `.imd-responses.json` answers all five findings.\n\n**Verification**\n\n| Check | Result |\n| --- | --- |\n| Reviewer's proof on starting tree | 16, 6, 12 failing pairs |\n| Reviewer's proof on this tree | 3 of 3 pass |\n| Delivered suite with verifier seed | 34 tests, 11 suites, 0 failures |\n| ChessEngineV5 runtime | 23,220 bytes, 1,356 under EIP-170 |\n| Opcode scan of new runtime | no forbidden opcodes |\n| CREATE2 rehearsal on chain id 1 | deploys and plays without initialization |\n\n**Trade-off worth knowing.** A variant that scored the promotion without playing the move into the scratch position saved about 33k gas in the worst self-play position but pushed the runtime to 24,450 bytes, 126 under the limit. I kept the smaller build.\n\n**Left as is.** The 22,111-byte figure in the `foundry.toml` comment and in the `launch.json` notes is stale, but both files are outside this job's write paths. The corrected sizes are in ADAPTATION.md for the manifest step.","treeHash":"3f5d95af1ed09a278680ff82d311b6281bd9ca99","usage":{"cachedInputTokens":4106620,"inputTokens":1026,"model":"claude-fable-5-1","outputTokens":87439,"runtime":"claude","turns":67,"wallClockMs":2191951}},{"artifacts":[],"attempt":1,"bundleHash":"8e8ab4a3a9e2fb18ca03346f9bee2e3b4493040baefd7847fd977a1f3a26063d","device":"77df6355049d2897","findings":[],"hash":"c6a5be5f20013f853443a9f532930bdf04d66235c3bd92567b38c18d5a837deb","nodeId":"e9a1ecfb-ab87-4cf3-b7cc-7eb8f9b09dfd","outcome":"completed","summary":"Done. The manifest is revised and verified, with only launch.json changed.\n\n**What was stale:** The later accepted engine commit (promotion-threat and mate-guard fixes) grew ChessEngineV5, and the manifest notes still quoted the older size from the brief. ADAPTATION.md records that the manifest step was told the new values.\n\n**What I changed:** One sentence in the notes of launch.json now states the rebuilt figures. Everything else in the manifest is unchanged: kind evm_contracts, the single contract ChessEngineV5 with an empty constructor argument list, and the rest of the notes.\n\n| Figure | Value |\n|---|---|\n| Runtime bytes | 23,220 |\n| Initcode bytes | 23,246 |\n| Margin under EIP-170 | 1,356 |\n\n**Verification:**\n- The compiled artifact confirms the sizes above and an ABI with no constructor, matching the empty argument list.\n- The engine has no owner, admin, selfdestruct or delegatecall, so the protected owner and opcode checks have nothing to object to.\n- A schema check of launch.json passed: only the three allowed keys, a valid identifier, string arguments, and notes under the limit.\n- `forge build` succeeds. `forge test` with the verifier's fuzz seed passed all 34 tests across 11 suites.\n- `git status` shows launch.json as the only modified file.\n\nThe size warning from `forge build --sizes` concerns test-only probe contracts, not the engine, and does not affect the normal build.","treeHash":"ca883e6da74e4db4a3785fe3d1de1a3d24d78fdb","usage":{"cachedInputTokens":180436,"inputTokens":226,"model":"claude-fable-5-1","outputTokens":3800,"runtime":"claude","turns":8,"wallClockMs":267454}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"f96a0c89c039c22a","findings":[{"citation":"resolved","description":"Commit f626caf changed ChessEngineV5 (the _boxes->_room rewrite and the likelyTests budget), and the runtime grew. The manifest notes, which reviewers and the attestation read, still say 22,111 bytes. foundry.toml:11 has the same stale figure. Nothing reverts because of it and the contract is still under EIP-170 (2,308 bytes spare), but the manifest no longer describes the tree it ships with.","line":9,"path":"launch.json","reproduction":"At HEAD f626caf, run `forge build --sizes`. Expected, from the notes: ChessEngineV5 runtime 22,111 B. Actual: ChessEngineV5 runtime 22,268 B (initcode 22,294 B). This matches the brief's 22,268, not the notes. Fix: change the number in the launch.json notes (and the foundry.toml comment) to 22,268.","severity":"low","snippet":"  \"notes\": \"IMDuel's chess engine on Ethereum (chain 1), deployed alone before the hook launch: no token, pool, distributor, owner, admin or upgrade path; nothing is called after deployment. ChessEngineV5 is pure: play() chooses a move for a position at a strength (0-10,000 basis points) and applies it by the rules (Rules library, Bitboard library), playAny() picks a seeded legal move. It holds no state and no funds. The project compiles at 200 optimizer runs (foundry.toml) to keep it under the 24,576-byte runtime limit (22,111 bytes).\"","title":"launch.json notes (and foundry.toml comment) give the wrong ChessEngineV5 runtime size: 22,111 bytes stated, 22,268 built"},{"citation":"resolved","description":"The brief asks for the complete engine/rules tests. Commit d09a667 removed the hook files, and with them test/Strength.t.sol (test_decidedPoints, testFuzz_boundedAndMonotonic, testFuzz_tenfoldIsAboutThirtyPoints). That test imports only forge-std and src/Strength.sol, with no hook dependency. src/Strength.sol is still in the export, but no test now covers it directly: test/EngineV5Games.t.sol only uses it to generate strengths. Strength is also not used by ChessEngineV5. It is the hook's trade-size curve, so the adapter should either restore its test or move the library out with the hook. The fromShare multiplication `paid * FLOOR` is checked, so a very large `paid` reverts instead of returning the 9,000 cap. This matters to the hook that will call it later.","line":15,"path":"src/Strength.sol","reproduction":"(1) `git show d09a667^:test/Strength.t.sol` shows a self-contained test of src/Strength.sol. `ls test/Strength.t.sol` at HEAD shows it is missing. (2) Through a wrapper contract, call Strength.fromShare(1e9, 1e9): it returns 9000 as expected. Then call Strength.fromShare(type(uint256).max / 1e5 + 1, type(uint256).max). Expected: a bounded strength (0..9000). Actual: Panic 0x11 (arithmetic overflow) at src/Strength.sol:15. Verified with a scratch forge test using vm.expectRevert.","severity":"low","snippet":"        uint256 up = _log2x256(paid * FLOOR);","title":"Engine-only export dropped test/Strength.t.sol, a standalone test of the shipped src/Strength.sol; fromShare reverts when paid > 2^256/1e5"},{"citation":"resolved","description":"Contracts read in full: src/ChessEngineV5.sol, src/Rules.sol, src/Chess.sol, src/IChessEngine.sol, src/Strength.sol, launch.json and foundry.toml. src/Bitboard.sol was reviewed through its function signatures and its callers' use only. Its move generation was not re-derived line by line, because test/Bitboard.t.sol, test/Endings.t.sol and test/RulesRandom.t.sol check it against chess.js corpora and pass. No contract was out of reach. The external functions play, playAny and choose are all pure. Nothing changes state, holds funds, or has an access-control surface. The constructor takes no arguments, which matches launch.json constructorArgs []. The manifest has only the schema keys kind, contracts and notes. There are no minting, pause, blacklist, proxy, initializer or owner paths. Strength.fromShare's revert and the stale size figure are reported separately.","line":92,"path":"src/ChessEngineV5.sol","reproduction":"`forge build` succeeds. `forge test` passes 17/17 tests in 9 suites. A scan of out/ChessEngineV5.sol/ChessEngineV5.json deployedBytecode, using the protected harness's reachability rule, finds no reachable 0xf4, 0xf2, 0xff, 0xf0, 0xf5, 0xf1 or 0x55 among its 22,268 bytes. The ABI has no constructor, fallback or receive.","severity":"info","snippet":"    function play(uint256 board, uint32 mover, uint32 other, bool black, uint256 strengthBps, uint256 seed,","title":"Scope and launch-forbidden checks: ChessEngineV5 is clean (no constructor, no state, no owner, no forbidden opcodes)"}],"hash":"db8f8b055b024d40c00c83f758ce1c188d259a2251e70b1d3a381af5d78ee0dd","nodeId":"6c624c86-2b61-4621-bba7-a931a2838412","outcome":"completed","summary":"I found no critical, high or medium defects in ChessEngineV5. It's ready to deploy as committed with no constructor arguments. The review is in `.imd-findings.json`: two low findings and one info note. No other file was changed; the scratch test I used was deleted.\n\n**Checks run:**\n- `forge build` succeeds and `forge test` passes all 17 tests across 9 suites (about 10 minutes, mostly the random-games test).\n- ChessEngineV5's runtime is 22,268 bytes, as the brief says.\n- `forge build --sizes` exits with an error, but only because two test helper contracts, `Judge` and `V5Probe`, are over the 24,576-byte limit. The engine itself has 2,308 bytes spare.\n\n**Launch rules:** nothing the launch forbids is present. There's no constructor, no stored state, no owner or admin, no minting, pausing or blacklisting, and no proxy or initializer. I scanned the reachable bytecode for DELEGATECALL, CALLCODE, SELFDESTRUCT, CALL, CREATE, CREATE2 and SSTORE and found none. `play`, `playAny` and `choose` are all pure, and `launch.json` has only the allowed keys with an empty `constructorArgs`, matching the constructor.\n\n**Findings:**\n1. **Low: the size in `launch.json` is out of date** (`launch.json:9`). The notes say 22,111 bytes, but the latest engine change took it to 22,268. The comment in `foundry.toml:11` has the same old number. To check, run `forge build --sizes`; the fix is to change the number in both places.\n2. **Low: a test was dropped from the engine-only export, and `Strength.fromShare` can revert** (`src/Strength.sol:15`).\n   - The commit that removed the hook code also removed `test/Strength.t.sol`, which tests only `src/Strength.sol` and doesn't need the hook. `Strength.sol` still ships, but nothing now tests it directly.\n   - The engine doesn't use `Strength` at all; it belongs to the hook. The adapter should either restore the test or move the library out with the hook.\n   - `fromShare(type(uint256).max / 1e5 + 1, type(uint256).max)` reverts with an overflow error instead of returning the 9,000 cap. A scratch test confirmed it. This only matters to the hook that will call it later.\n3. **Info:** records which contracts were read and the clean results above.\n\n**What I read:** all of `ChessEngineV5.sol`, `Rules.sol`, `Chess.sol`, `IChessEngine.sol` and `Strength.sol`, plus `launch.json` and `foundry.toml`. For `Bitboard.sol` I read only its function list and how the engine calls it, not its move logic line by line. That logic is covered by the tests that compare it with the chess.js library on the saved positions, and they pass. Nothing was out of reach.\n\nI also looked into whether the engine can miss a mate in one at full strength when more checks come before the mating move than its fixed budget of mate tests. I couldn't build a position that proves it in the time I had, so it isn't in the findings.","treeHash":null,"usage":{"cachedInputTokens":547344,"inputTokens":26,"model":"claude-opus-5-5","outputTokens":13066,"runtime":"claude","turns":18,"wallClockMs":813923}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"96eeb8eb2acdbbf1","findings":[{"citation":"resolved","description":"Reported by audit_economics; reproduced. The only enemy replies the engine ever weighs are static attacks on our pieces after our move (_risk at line 387 reads c.enemy, the enemy's current attack map; _exact at lines 471-489 rebuilds the same map on the position after the move) and the enemy's mate in one (line 477). _passer (line 419) scores only our own passed pawns. No term looks at an enemy pawn's advance or promotion, so a pawn on the seventh rank is invisible at every strength, including 10,000, and the hook's quiet-move counter is reset by the pawn race so the push for progress never engages. The contract's own specification (header, lines 15-24) promises that a big trade 'plays like a strong amateur' and that 'risk is still scored, so it never hangs a piece'; here it hangs a rook to a one-move promotion that a beginner sees. In the hook this means the trader who paid for the cap receives a move that turns a won game into a loss, and the side that should lose is paid instead; buying more strength changes nothing because strength 0 and 10,000 are equally blind. Medium: a broken guarantee under a specific, common endgame condition, not a rules or funds-custody defect; the chosen move is always legal. Minimal fix that keeps the design: in _risk (or in _exact for second looks) add a loss term for an enemy pawn that can reach its promotion square after our move unless our move captures it, blocks it or attacks the promotion square (roughly queen minus pawn value), with the matching gain for moves that stop it; alternatively score the enemy's best pawn push in _exact next to the mate-in-one test.","line":387,"path":"src/ChessEngineV5.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {ChessEngineV5} from \"src/ChessEngineV5.sol\";\nimport {Rules} from \"src/Rules.sol\";\nimport {Bitboard} from \"src/Bitboard.sol\";\n\n/// Plays the hook's rules for the test (Rules.move checks legality, as the hook does for a human move).\ncontract PasserRules {\n    function move(uint256 board, uint32 mover, uint32 other, bool black, uint16 m) external pure returns (Rules.Played memory) {\n        return Rules.move(board, mover, other, black, m);\n    }\n\n    function legal(uint256 board, uint32 w, uint32 k, bool white) external pure returns (uint16[] memory) {\n        return Bitboard.legalMoves(Bitboard.fromBoard(board, w, k), white);\n    }\n}\n\n/// An enemy pawn one step from promotion is invisible to the engine: nothing in _cheap/_risk/_exact scores the\n/// enemy's promotion, so at the hook's cap (9,000) and at full strength (10,000) the engine makes a king move and\n/// lets the pawn queen, turning a trivially won ending (a rook up, or a rook and bishop up) into a loss.\n/// Expected: after the engine's move, Black either cannot promote (h2-h1 illegal or blocked) or the new queen can\n/// be taken at once. Actual: the engine plays Ke4 / Ke3 and the pawn queens unopposed.\ncontract PasserBlindTest is Test {\n    ChessEngineV5 internal v5 = new ChessEngineV5();\n    PasserRules internal rules = new PasserRules();\n\n    uint16 internal constant H2H1 = (15 << 6) | 7; // h2 = 15, h1 = 7\n\n    function side(uint256 kingSq) internal pure returns (uint32) {\n        return 0x80800000 | (uint32(kingSq) << 8) | 0xff;\n    }\n\n    function put(uint256 board, uint256 sq, uint256 piece) internal pure returns (uint256) {\n        return board | (piece << (sq << 2));\n    }\n\n    /// True if the engine's move keeps the promotion in hand: h2-h1 is not legal afterwards, or the queen on h1\n    /// can be captured immediately.\n    function stopsThePawn(uint256 b, uint32 w, uint32 k, uint256 acc, uint256 seed) internal view returns (bool, uint16) {\n        uint64[8] memory none;\n        (uint16 m, Rules.Played memory p) = v5.play(b, w, k, false, acc, seed, none, 1, 20);\n        // Black's reply: promote if it is legal\n        uint16[] memory replies = rules.legal(p.board, p.mover, p.other, false);\n        bool canPromote;\n        for (uint256 i; i < replies.length; i++) if (replies[i] == H2H1) canPromote = true;\n        if (!canPromote) return (true, m);\n        Rules.Played memory q = rules.move(p.board, p.other, p.mover, true, H2H1);\n        if (q.status != 0) return (false, m);\n        uint16[] memory ours = rules.legal(q.board, q.other, q.mover, true);\n        for (uint256 i; i < ours.length; i++) if (ours[i] & 63 == 7) return (true, m); // takes the queen on h1\n        return (false, m);\n    }\n\n    function check(string memory title, uint256 b, uint32 w, uint32 k) internal {\n        uint256 failures;\n        for (uint256 acc = 9_000; acc <= 10_000; acc += 1_000) {\n            for (uint256 seed; seed < 8; seed++) {\n                (bool ok, uint16 m) = stopsThePawn(b, w, k, acc, seed);\n                if (!ok) {\n                    failures++;\n                    emit log_named_uint(string.concat(title, \": pawn queens unopposed after move (from<<6|to), strength \", vm.toString(acc), \", seed \", vm.toString(seed)), m);\n                }\n            }\n        }\n        assertEq(failures, 0, string.concat(title, \": the engine must stop the pawn on h2\"));\n    }\n\n    /// K+R v K+P: White Kd3 Rb7, Black Kg8 pawn h2, White to move. Rb1 wins (h1=Q Rxh1); a king move loses the rook\n    /// to the new queen (the position after 4...h2 of the scratch trace, where the engine played 5.Ke4 and lost).\n    function test_rookEndingPawnOnSeventh() public {\n        uint256 b = put(put(put(put(0, 19, 6), 49, 4), 62, 14), 15, 9);\n        check(\"KR v KP\", b, side(19), side(62));\n    }\n\n    /// K+R v K+P: White Kd3 Ra1, Black Kg8 pawn h2, White to move. Rh1 blocks the pawn and wins it next move.\n    function test_rookCanBlockOnFirstRank() public {\n        uint256 b = put(put(put(put(0, 19, 6), 0, 4), 62, 14), 15, 9);\n        check(\"KR v KP, Ra1\", b, side(19), side(62));\n    }\n\n    /// K+R+B v K+P: White Ke2 Rd8 Bc5, Black Ke6 pawn h2, White to move. Rh8 wins (h1=Q Rxh1); the engine played\n    /// 8.Ke3 in the scratch trace and lost to the new queen.\n    function test_rookAndBishopEnding() public {\n        uint256 b = put(put(put(put(put(0, 12, 6), 59, 4), 34, 2), 44, 14), 15, 9);\n        check(\"KRB v KP\", b, side(12), side(44));\n    }\n}","reproduction":"Position A: White Kd3 (square 19) Rb7 (49), Black Kg8 (62) pawn h2 (15), White to move, no castling, previous all zero, gameNo 1, quiet 20. board = (6<<76)|(4<<196)|(14<<248)|(9<<60); whiteState = 0x80800000|(19<<8)|0xff = 0x808013ff, blackState = 0x80800000|(62<<8)|0xff = 0x80803eff. Call play(board, 0x808013ff, 0x80803eff, false, strength, seed, previous, 1, 20) for seeds 0..7 at strength 9,000 and 10,000. Expected: a move after which h2-h1 is illegal or the new queen can be taken at once (Rb1 = 3137 or Rh7 = 3191). Actual: every one of the 16 seed/strength pairs returns a king move (1244 = Kd3-e4, 1243 = Kd3-d4, 1236 = Kd3-e3); Black then plays h2-h1 (967) and the queen wins the rook. Position B: White Kd3 Ra1 (0), same Black: expected Rh1 (7); actual Ra1-a7 (48) on seeds 1, 3 and 4 at both strengths (6 pairs). Position C: White Ke2 (12) Rd8 (59) Bc5 (34), Black Ke6 (44) pawn h2: expected Rh8 (3839); actual Ke2-e3 (788) or Ke2-d3 (787) on 6 of 8 seeds at both strengths (12 pairs). Ran the attached test (test/scratch/PasserBlind.t.sol): all three tests fail on this tree with 16, 6 and 12 failing pairs.","severity":"medium","snippet":"    function _risk(Ctx memory c, uint8 from, uint8 to, uint8 t, uint8 moved) internal pure returns (int256 threat) {","title":"Engine never scores an enemy pawn about to promote: at the hook's cap (9,000) and at full strength it plays a king move and lets the pawn queen in trivially won rook endings"},{"citation":"resolved","description":"Reported by audit_flow; reproduced. _exact asks Bitboard.mateInOne(n, !c.white, MATE_TESTS) whether the enemy mates after the leader. That search (src/Bitboard.sol lines 574-607) walks the enemy pieces from a1 upward in lsb order and gives up after six confirmed checks (line 603, `if (--tries == 0) return 0;`). Which six checks are tried therefore depends on where the enemy's pieces stand rather than on the position, and a mating check that happens to be enumerated seventh is never seen. Because the walk always starts from a1, the engine systematically sees enemy mates delivered by pieces on low squares and misses those delivered by pieces on high squares, so the same mate is found when the engine is White and missed when it is Black (or the reverse), and at full strength the engine walks into a mate in one in one orientation only. The bound is documented as a cost measure and the chosen move is always legal, so this is a play-quality defect. Minimal fix within the budget: try the direct-check candidates of the queen and rooks before the rest (or order candidates by the checking piece's value), or use a larger bound only in _exact, which runs at most four times per choice.","line":477,"path":"src/ChessEngineV5.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {Bitboard} from \"src/Bitboard.sol\";\nimport {ChessEngineV5} from \"src/ChessEngineV5.sol\";\n\n/// Exposes the engine's second look (_exact) at full strength with the mate-in-one guard forced on.\ncontract ExactProbe is ChessEngineV5 {\n    function exact(uint256 board, uint32 w, uint32 b, bool white, uint16 m) external pure returns (int256) {\n        Ctx memory c = _context(board, w, b, white, true);\n        _effort(c, 10_000, 0);\n        c.guardBps = 10_000;\n        return _exact(c, m, 0);\n    }\n}\n\n/// The second look asks Bitboard.mateInOne(n, enemy, MATE_TESTS = 6) whether the enemy mates after the leader. That\n/// search walks the enemy's pieces from a1 upward and stops after six confirmed checks, so whether the mating check is\n/// among the six depends on where the pieces stand, not on the position. The same position mirrored by colour is\n/// therefore judged lost for White (Qe3-f2# is found) and safe for Black (Qe6-f7# is the seventh check and is never\n/// tried). Fails on the current code: the mirrored verdict is -320 instead of -100000. Passes once the bounded search\n/// finds the mate in both orientations (ordering the candidates by the checking piece's value, or a larger bound in\n/// the second look).\ncontract MateMirrorProofTest is Test {\n    ExactProbe probe = new ExactProbe();\n\n    // White Kg2 Qe2 Ra1 Rh1 Bc1 Ng1 Ba6 pb2 c2 d2 h3 a4 e4 f4; Black Kf7 Qe3 Ra8 Rh8 Bc8 Bd8 Nc6 Ng4 pc5 f5 g5 e6 b7 d7 h7\n    uint256 constant BOARD_W = 0xc000aa0c90e0909000090b02099009000b110001100d00000605111043000204;\n    uint16 constant QE2_D1 = (12 << 6) | 3; // 771\n    // the same position with the colours mirrored, Black to move\n    uint256 constant BOARD_B = 0xcb000a0c0e0d99909005000003990009011001000001030a1060101040002204;\n    uint16 constant QE7_D8 = (52 << 6) | 59; // 3387\n\n    function test_unboundedSearchFindsTheMateInBothOrientations() public pure {\n        Bitboard.Pos memory n = Bitboard.makeMove(Bitboard.fromBoard(BOARD_W, 0x80800eff, 0x808035ff), QE2_D1, true);\n        assertEq(Bitboard.mateInOne(n, false), (20 << 6) | 13, \"Qe3-f2# after Qd1\");\n        n = Bitboard.makeMove(Bitboard.fromBoard(BOARD_B, 0x80800aff, 0x808031ff), QE7_D8, false);\n        assertEq(Bitboard.mateInOne(n, true), (44 << 6) | 53, \"Qe6-f7# after Qd8\");\n    }\n\n    function test_secondLookVerdictIsTheSameForAPositionAndItsMirror() public view {\n        int256 asWhite = probe.exact(BOARD_W, 0x80800eff, 0x808035ff, true, QE2_D1);\n        int256 asBlack = probe.exact(BOARD_B, 0x80800aff, 0x808031ff, false, QE7_D8);\n        assertEq(asWhite, -100_000, \"White's Qd1 is judged lost (enemy mates in one)\");\n        assertEq(asBlack, -100_000, \"Black's mirrored Qd8 must be judged lost too\");\n    }\n}","reproduction":"Board 0xc000aa0c90e0909000090b02099009000b110001100d00000605111043000204 (White Kg2 Qe2 Ra1 Rh1 Bc1 Ng1 Ba6, pawns b2 c2 d2 h3 a4 e4 f4; Black Kf7 Qe3 Ra8 Rh8 Bc8 Bd8 Nc6 Ng4, pawns c5 f5 g5 e6 b7 d7 h7), whiteState 0x80800eff, blackState 0x808035ff, White to move, trial move 771 (Qe2-d1). After it Black has 8 checking moves; Bitboard.mateInOne(n, false) and Bitboard.mateInOne(n, false, 6) both return 1293 (Qe3-f2#), so _exact scores the move -100000. Mirror the board (0xcb000a0c0e0d99909005000003990009011001000001030a1060101040002204, whiteState 0x80800aff, blackState 0x808031ff, Black to move) and the mirrored trial move 3387 (Qe7-d8): White has the same 8 checking moves, Bitboard.mateInOne(n, true) returns 2869 (Qe6-f7#) but Bitboard.mateInOne(n, true, 6) returns 0, so _exact (full strength, guardBps forced to 10,000, base 0) returns -320 instead of -100000. Expected: the same verdict for a position and its mirror. Actual: lost for White, safe for Black. Ran as test/scratch/MateMirror.t.sol (attached): the mirror assertion fails with -320 != -100000.","severity":"low","snippet":"                && Bitboard.mateInOne(n, !c.white, MATE_TESTS) != 0) {","title":"Second-look guard against the enemy's mate in one is walk-order dependent: a position and its colour mirror get opposite verdicts"},{"citation":"resolved","description":"Reported by audit_flow, audit_economics and audit_math (one root cause, merged); reproduced. fromShare scales the payment by FLOOR (100,000) in checked arithmetic before taking its logarithm. Any paid above type(uint256).max / 100_000 (about 1.16e72 base units) reverts with an arithmetic panic whatever the depth, including depths where the answer should be the 9,000 cap and depths where it should be 0. ChessEngineV5 does not import Strength, so the contract in launch.json is unaffected; the library ships in src/ and is the strength curve the later hook will call on every trade, where a token with a very large supply would make every swap above that size revert instead of playing at the cap. ADAPTATION.md item 2 records it as known and unresolved, and test/Strength.t.sol pins the panic as current behaviour. Minimal fix that keeps the curve: return MAX_BPS early when paid >= depth, and compute up as _log2x256(paid) + _log2x256(FLOOR) (4230) instead of _log2x256(paid * FLOOR), or saturate paid at type(uint256).max / FLOOR before multiplying.","line":15,"path":"src/Strength.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {Strength} from \"src/Strength.sol\";\n\ncontract StrengthShareHarness {\n    function fromShare(uint256 paid, uint256 depth) external pure returns (uint16) {\n        return Strength.fromShare(paid, depth);\n    }\n}\n\n/// Strength.fromShare multiplies `paid` by FLOOR (100,000) before taking its logarithm. A payment above\n/// type(uint256).max / 100_000 overflows that product and the call reverts with Panic(0x11) instead of returning\n/// the capped strength. Fails on the current code; passes once the product no longer overflows (for example by\n/// adding log2(FLOOR) to log2(paid) instead of multiplying, or by returning the cap when paid >= depth).\ncontract StrengthOverflowProofTest is Test {\n    StrengthShareHarness h = new StrengthShareHarness();\n\n    function test_paymentAboveMaxOverFloorIsCappedNotReverted() public view {\n        uint256 paid = type(uint256).max / 100_000 + 1;\n        // one wei less already returns the cap\n        assertEq(h.fromShare(paid - 1, 1), 9_000, \"just below the overflow boundary\");\n        // one wei more must also be the cap (a 100%+ share), not a revert\n        assertEq(h.fromShare(paid, 1), 9_000, \"above the boundary, tiny depth\");\n        assertEq(h.fromShare(paid, paid), 9_000, \"above the boundary, the whole depth\");\n    }\n}","reproduction":"Strength.fromShare(type(uint256).max / 100_000, 1) returns 9,000. Strength.fromShare(type(uint256).max / 100_000 + 1, 1) and Strength.fromShare(p, p) with p = type(uint256).max / 100_000 + 1 (a 100% share) both revert with Panic(0x11); expected 9,000. Strength.fromShare(1 << 240, 1 << 255) reverts where a share of 2^-15 (about 1,400 bps) is expected. Ran the attached test (test/scratch/StrengthOverflow.t.sol): it fails on this tree with `panic: arithmetic underflow or overflow (0x11)`.","severity":"low","snippet":"        uint256 up = _log2x256(paid * FLOOR);","title":"Strength.fromShare reverts with Panic(0x11) instead of returning the cap when paid exceeds type(uint256).max / 100_000 (not linked into ChessEngineV5)"},{"citation":"resolved","description":"Reported by audit_economics; reproduced. Not a defect of the pure engine, which takes the seed as an argument by design, but a trust assumption the later hook launch must honour. Which quiet moves are considered (line 326), whether a check is tested for mate (line 341), whether second looks happen (line 172), the seeded penalty of up to 400 centipawns (line 164), the mate-in-one guard (line 476) and whether threats to other pieces are noticed (_aware, line 227) all derive from `seed` alone, and the engine is pure and deterministic. A caller who can choose or predict the seed the hook passes can select one at which strength 0 plays the strength-9,000 move, or at which the engine misses a mate against them, so 'effort follows the trade' collapses. The hook must derive the seed from something the trader cannot influence after committing the trade (a later block's prevrandao, or a commit-reveal).","line":217,"path":"src/ChessEngineV5.sol","reproduction":"Position from test/EngineV5.t.sol test_mateFoundAfterSixChecks: White Kh3 Ra1 Rd7 Ne5 Ng5 Nd6 Nf4 Nh4, Black Kh8 Qb1 pg7 ph7, White to move, Rd8 mates. Call play(board, 0x808017ff, 0x80803fff, false, 0, seed, zero previous, 0, 0) for seeds 0..63 at strengthBps 0: Played.status == 2 (checkmate) for 36 of the 64 seeds; the same seed always returns the same move. Expected per the design: a strength-0 player misses mates; actual: whether it misses is decided entirely by a value the caller supplies. Ran as test/scratch/SeedProbe.t.sol (log: 'mates at strength 0 over 64 seeds: 36').","severity":"info","snippet":"        c.seedHash = uint256(keccak256(abi.encode(seed)));","title":"Trust assumption for the hook: every element of the engine's weakness is a deterministic function of the caller-supplied seed"},{"citation":"resolved","description":"Reported by audit_flow, audit_permissions, audit_math and the test writer (merged). Partly reproduced: the specialists cited launch.json line 9 as well, but the committed launch.json notes already say '22,268 runtime bytes' (updated in commit 396bae2), so only the comment in foundry.toml line 11 is stale. The committed settings (solc 0.8.26, cancun, optimizer 200 runs, via_ir, bytecode_hash none, cbor_metadata false) produce 22,268 runtime bytes and 22,294 initcode bytes, 2,308 bytes under EIP-170 and far under the 49,152-byte initcode bound, so deployment is not affected and nothing is blocked. A reader trusting the comment believes there are 157 bytes more headroom than there are. foundry.toml is a configuration file outside any worker's write paths; reported so the author can correct the comment in a later pass.","line":11,"path":"foundry.toml","reproduction":"`grep -n 22,111 launch.json foundry.toml` matches only foundry.toml:11. `forge build --sizes` prints `| ChessEngineV5 | 22,268 | 22,294 | 2,308 | 26,858 |`. Expected: the comment says 22,268 (or omits the figure). Actual: 22,111. (The test-only Judge, 26,184 bytes, and V5Probe, 26,172 bytes, exceed the runtime limit but are not in launch.json.)","severity":"info","snippet":"# ChessEngineV5 is over Ethereum's 24,576-byte limit at 20,000 runs; at 200 it is 22,111 bytes. One setting for every","title":"foundry.toml comment states a stale ChessEngineV5 runtime size (22,111 bytes); the committed build produces 22,268"}],"hash":"e14c642b75ded5def30c7f7fe4d8e3240272975efc4f5c0bef26b869738fc587","nodeId":"df8b6817-46f8-4efb-88b6-fa091aa757ba","outcome":"completed","summary":"Review complete. The findings file holds five merged findings, each reproduced on the committed tree, and nothing outside `.imd-findings.json` and `test/scratch/` was touched.\n\n**What the specialists reported and what held**\n\n- **Kept, medium, with proof.** The engine never scores an enemy pawn about to promote. The attached test fails on this tree in all three rook endings, with 16, 6 and 12 failing seed/strength pairs at strengths 9,000 and 10,000. The engine's own header promises it never hangs a piece, so this is a broken guarantee under a common endgame condition.\n- **Kept, low, with proof.** The second look's bounded mate-in-one guard depends on piece walk order. I confirmed the exact position and its colour mirror: the unbounded search finds the mate both ways, the six-try search finds it only for White, and the second look scores the mirrored move -320 instead of -100,000. I rewrote the proof so it passes under either reasonable fix.\n- **Kept, low, with proof, merged from three areas.** Strength.fromShare panics above type(uint256).max / 100,000. The attached proof fails with Panic(0x11). The deployed engine does not link this library.\n- **Kept, info.** All weakness derives from the caller-supplied seed. Reproduced: 36 of 64 seeds mate at strength 0. Recorded as a trust assumption for the later hook, not an engine defect.\n- **Kept, info, merged from four areas, narrowed.** The stale 22,111-byte figure is now only in the foundry.toml comment. The specialists' launch.json citation no longer reproduces because the committed manifest already says 22,268.\n- **Dropped.** The math area's coverage row, which was not a finding.\n\n**My own pass**\n\nThe three entry points hold. `play`, `choose` and `playAny` are pure, reject strength above 10,000 and positions with no legal move, keep the original position intact for the rules replay, and bound every loop by piece and move counts. The free-memory-pointer rollback in legalMovesAndCheck only releases allocations made after the moves array. The contract has no constructor, owner, storage, or forbidden opcode, and its runtime and initcode sizes are within both deployment limits, so nothing blocks the CREATE2 launch. The full project suite passes with 53 tests across 14 suites under the project fuzz seed.\n\n**Coverage**\n\n| Entry point | Verdict |\n|---|---|\n| ChessEngineV5.play | finding 1 (play quality), otherwise holds |\n| ChessEngineV5.choose | same path as play without the rules replay |\n| ChessEngineV5.playAny | holds |\n| Rules.move / playLegal, Bitboard legality | holds, corpus-verified |\n| Strength.fromShare | finding 3, unreached by the deployed contract |","treeHash":null,"usage":{"cachedInputTokens":958942,"inputTokens":354,"model":"claude-fable-5-1","outputTokens":34329,"runtime":"claude","turns":29,"wallClockMs":835730}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"672c29f92850efe0","findings":[{"citation":"resolved","description":"Economic Security / Invariant / Flow Gap (execution x first principles). The engine's guarantee is that effort follows the trade: a big trade 'plays like a strong amateur' and 'risk is still scored, so it never hangs a piece'. Risk is scored only as static attacks on our pieces after our move (_risk at line 387 uses c.enemy, the enemy's current attack map; _exact at lines 464-495 rebuilds the same map on the position after the move and tests only the enemy's mate in one). _passer (line 419) scores only our own passed pawns. No term anywhere looks at an enemy pawn's advance or promotion, and no enemy reply other than mate in one is tried. An enemy pawn on the 7th rank is therefore invisible at every strength, including 10,000. In self-play with the hook's rules (both sides at the 9,000 cap) K+R v K+P (White Kd3 Rb7 / Black Kg8 pawn h2) is lost by the side a rook up: the engine walks its king (Kb2, Kc2, Kd3, Ke4) while h5-h4-h3-h2-h1=Q runs, then the queen takes the rook and mates. K+R+B v K+P (Ke1 Ra1 Bc1 / Ke8 ph7) was lost in 3 of 4 seeds and drawn by lost material in the fourth; K+Q v K+2P (Ke1 Qd1 / Ke8 pa7 ph7) was lost in 1 and drawn in 1 of 4. The hook's quiet-move counter resets on every pawn push, so the defender's pawn race also disables the engine's push for progress. Economic impact: the trader who paid for strength 9,000 receives a move that turns a trivially won game into a loss; the side that should lose is paid instead. Strength bought with a larger trade changes nothing here (strength 0 and 10,000 both ignore the pawn), which breaks the product's core promise that paying more buys stronger play. Minimal fix that keeps the design: in _risk (or _exact for second looks) add a loss term for an enemy pawn that can reach its promotion square after our move (at least when the square is not attacked by us or our move neither captures, blocks nor guards it), of roughly queen minus pawn value, and a matching gain for moves that stop it; alternatively score the enemy's best pawn push in _exact next to the mate-in-one test.","line":386,"path":"src/ChessEngineV5.sol","proof":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.26;\n\nimport {Test} from \"forge-std/Test.sol\";\nimport {ChessEngineV5} from \"src/ChessEngineV5.sol\";\nimport {Rules} from \"src/Rules.sol\";\nimport {Bitboard} from \"src/Bitboard.sol\";\n\n/// Plays the hook's rules for the test (Rules.move checks legality, as the hook does for a human move).\ncontract PasserRules {\n    function move(uint256 board, uint32 mover, uint32 other, bool black, uint16 m) external pure returns (Rules.Played memory) {\n        return Rules.move(board, mover, other, black, m);\n    }\n\n    function legal(uint256 board, uint32 w, uint32 k, bool white) external pure returns (uint16[] memory) {\n        return Bitboard.legalMoves(Bitboard.fromBoard(board, w, k), white);\n    }\n}\n\n/// An enemy pawn one step from promotion is invisible to the engine: nothing in _cheap/_risk/_exact scores the\n/// enemy's promotion, so at the hook's cap (9,000) and at full strength (10,000) the engine makes a king move and\n/// lets the pawn queen, turning a trivially won ending (a rook up, or a rook and bishop up) into a loss.\n/// Expected: after the engine's move, Black either cannot promote (h2-h1 illegal or blocked) or the new queen can\n/// be taken at once. Actual: the engine plays Ke4 / Ke3 and the pawn queens unopposed.\ncontract PasserBlindTest is Test {\n    ChessEngineV5 internal v5 = new ChessEngineV5();\n    PasserRules internal rules = new PasserRules();\n\n    uint16 internal constant H2H1 = (15 << 6) | 7; // h2 = 15, h1 = 7\n\n    function side(uint256 kingSq) internal pure returns (uint32) {\n        return 0x80800000 | (uint32(kingSq) << 8) | 0xff;\n    }\n\n    function put(uint256 board, uint256 sq, uint256 piece) internal pure returns (uint256) {\n        return board | (piece << (sq << 2));\n    }\n\n    /// True if the engine's move keeps the promotion in hand: h2-h1 is not legal afterwards, or the queen on h1\n    /// can be captured immediately.\n    function stopsThePawn(uint256 b, uint32 w, uint32 k, uint256 acc, uint256 seed) internal view returns (bool, uint16) {\n        uint64[8] memory none;\n        (uint16 m, Rules.Played memory p) = v5.play(b, w, k, false, acc, seed, none, 1, 20);\n        // Black's reply: promote if it is legal\n        uint16[] memory replies = rules.legal(p.board, p.mover, p.other, false);\n        bool canPromote;\n        for (uint256 i; i < replies.length; i++) if (replies[i] == H2H1) canPromote = true;\n        if (!canPromote) return (true, m);\n        Rules.Played memory q = rules.move(p.board, p.other, p.mover, true, H2H1);\n        if (q.status != 0) return (false, m);\n        uint16[] memory ours = rules.legal(q.board, q.other, q.mover, true);\n        for (uint256 i; i < ours.length; i++) if (ours[i] & 63 == 7) return (true, m); // takes the queen on h1\n        return (false, m);\n    }\n\n    function check(string memory title, uint256 b, uint32 w, uint32 k) internal {\n        uint256 failures;\n        for (uint256 acc = 9_000; acc <= 10_000; acc += 1_000) {\n            for (uint256 seed; seed < 8; seed++) {\n                (bool ok, uint16 m) = stopsThePawn(b, w, k, acc, seed);\n                if (!ok) {\n                    failures++;\n                    emit log_named_uint(string.concat(title, \": pawn queens unopposed after move (from<<6|to), strength \", vm.toString(acc), \", seed \", vm.toString(seed)), m);\n                }\n            }\n        }\n        assertEq(failures, 0, string.concat(title, \": the engine must stop the pawn on h2\"));\n    }\n\n    /// K+R v K+P: White Kd3 Rb7, Black Kg8 pawn h2, White to move. Rb1 wins (h1=Q Rxh1); a king move loses the rook\n    /// to the new queen (the position after 4...h2 of the scratch trace, where the engine played 5.Ke4 and lost).\n    function test_rookEndingPawnOnSeventh() public {\n        uint256 b = put(put(put(put(0, 19, 6), 49, 4), 62, 14), 15, 9);\n        check(\"KR v KP\", b, side(19), side(62));\n    }\n\n    /// K+R v K+P: White Kd3 Ra1, Black Kg8 pawn h2, White to move. Rh1 blocks the pawn and wins it next move.\n    function test_rookCanBlockOnFirstRank() public {\n        uint256 b = put(put(put(put(0, 19, 6), 0, 4), 62, 14), 15, 9);\n        check(\"KR v KP, Ra1\", b, side(19), side(62));\n    }\n\n    /// K+R+B v K+P: White Ke2 Rd8 Bc5, Black Ke6 pawn h2, White to move. Rh8 wins (h1=Q Rxh1); the engine played\n    /// 8.Ke3 in the scratch trace and lost to the new queen.\n    function test_rookAndBishopEnding() public {\n        uint256 b = put(put(put(put(put(0, 12, 6), 59, 4), 34, 2), 44, 14), 15, 9);\n        check(\"KRB v KP\", b, side(12), side(44));\n    }\n}","reproduction":"Position A: White Kd3 (square 19) Rb7 (49), Black Kg8 (62) pawn h2 (15), White to move, no castling (states 0x80800000|sq<<8|0xff), previous all zero, gameNo 1, quiet 20. board = (6<<76)|(4<<196)|(14<<248)|(9<<60). Call play(board, 0x808013ff, 0x80803eff, false, 9000, seed, previous, 1, 20) for seeds 0..7 and again at 10000. Expected: Rb1 (move 49<<6|1 = 3137) or a check, after which h2-h1 is illegal or the new queen is captured at once. Actual: every seed returns a king move (1244 = Kd3-e4, 1243 = Kd3-d4, 1236 = Kd3-e3); Black then plays h2-h1 (967), the queen takes the rook and mates. Position B: White Kd3 Ra1 (0), same Black: expected Rh1 (0<<6|7 = 7); actual Ra1-a7 (48) on seeds 1,3,4 at both strengths. Position C: White Ke2 (12) Rd8 (59) Bc5 (34), Black Ke6 (44) pawn h2: expected Rh8 (59<<6|63); actual Ke2-e3 (788) / Ke2-d3 (787) on 6 of 8 seeds at both strengths. The proof test test/scratch/PasserBlind.t.sol fails on all three with 16, 6 and 12 failing seed/strength pairs.","severity":"medium","snippet":"    /// What the move risks: the piece on its new square, and (if it notices) the worst threat to our other pieces.\n    function _risk(Ctx memory c, uint8 from, uint8 to, uint8 t, uint8 moved) internal pure returns (int256 threat) {","title":"Engine never sees an enemy pawn about to promote: at the hook's cap it lets a pawn queen in won rook endings and loses"},{"citation":"resolved","description":"Economic Security ('push fee formulas to max: overflow'). paid * FLOOR is checked arithmetic and reverts with Panic(0x11) when paid exceeds type(uint256).max / 100_000 (about 1.16e72). The library is in the shipped src/ tree and is the strength curve the hook will call on every trade; a token with a very large supply (or an attacker's own token with 2^255 units paired in a pool) makes every swap above that size revert instead of playing at the 9,000 cap. The engine launch itself does not link Strength, so there is no effect on the deployed ChessEngineV5; this is already recorded as audit finding 8116943f in ADAPTATION.md and characterised by test/Strength.t.sol. Reported here for completeness of the economic pass; fix by clamping (if paid >= depth return MAX_BPS before multiplying, or use mulDiv / compare paid / depth first).","line":15,"path":"src/Strength.sol","reproduction":"Strength.fromShare(type(uint256).max / 100_000 + 1, type(uint256).max) -> Panic(0x11). Strength.fromShare(type(uint256).max, 1) -> Panic(0x11). Expected: 9_000 (the cap) for any paid >= depth / 100 and 0 for a share under 1/100000; actual: revert. test/Strength.t.sol test_knownOverflowAtMultiplicationBoundary demonstrates it.","severity":"low","snippet":"        uint256 up = _log2x256(paid * FLOOR);","title":"Strength.fromShare reverts with an arithmetic panic for paid > type(uint256).max / 100000 (known, unresolved)"},{"citation":"resolved","description":"Trust assumption for the hook, not a defect of the pure engine. Every element of weak play (which quiet moves are looked at, whether a check is tested for mate, whether second looks happen, the up-to-400-centipawn seeded penalty, and whether threats to other pieces are noticed via _aware at line 226) is derived from `seed` alone. The engine is pure and deterministic, so anyone who can grind or predict the seed the hook passes (block values, swap parameters, nonce) can select the seed at which strength 0 produces the same move as strength 9,000, or at which the engine misses a mate against them. The hook must derive the seed from something the trader cannot influence after committing the trade (a later block's prevrandao, a commit-reveal), or the 'effort follows the trade' economics collapse.","line":217,"path":"src/ChessEngineV5.sol","reproduction":"Position from test/EngineV5.t.sol test_mateFoundAfterSixChecks (White Kh3 Ra1 Rd7 Ne5 Ng5 Nd6 Nf4 Nh4 / Black Kh8 Nb1 pg7 ph7, White to move, Rd8 mates). play(..., strengthBps = 0, seed) over seeds 0..63 returns the mating move for 36 of 64 seeds (mateBps = 5,000 at strength 0). A caller choosing among two seeds mates almost always at strength 0; a caller who must accept the seed mates half the time. Expected per the design: a strength-0 player misses mates; actual: the miss is decided entirely by a value the caller supplies.","severity":"info","snippet":"        c.seedHash = uint256(keccak256(abi.encode(seed)));","title":"All of the engine's weakness is a deterministic function of the caller-supplied seed: a trader who can choose or predict the seed buys full-strength play for free"}],"hash":"e3fc06b9231cd85b6899c4f80e61d7e8f171469abdab92eaee428898762cde85","nodeId":"18b8edce-7588-4a41-a99a-9553795e1866","outcome":"completed","summary":"The review is complete. The findings file holds three entries and no tracked file was changed.\n\n**Main finding (medium, with proof).** The engine has no term for an enemy pawn about to promote. Risk is scored only as the enemy's static attacks on our pieces, and the second look tests only the enemy's mate in one, so a pawn on the 7th rank is invisible at every strength including 10,000. In self-play under the hook's draw rules with both sides at the 9,000 cap, the side a rook up in K+R v K+P walked its king while the h-pawn ran to h1 and then lost to the new queen. K+R+B v K+P was lost in three of four seeds and drawn in the fourth. A single-call reproduction is in the finding: White Kd3 Rb7 v Black Kg8 pawn h2, White to move, returns a king move on all 16 seed/strength pairs instead of Rb1. The proof test `test/scratch/PasserBlind.t.sol` fails on the current code with 16, 6 and 12 failing pairs across three positions. Economically, the trader who paid for the cap receives a move that turns a won game into a loss, and buying more strength changes nothing, which breaks the \"effort follows the trade\" promise.\n\n**Smaller items.**\n- Low: `Strength.fromShare` reverts with a checked-arithmetic panic for very large payments. Already recorded in ADAPTATION.md as finding 8116943f, not linked by the engine launch, included for completeness.\n- Info: every element of weak play is a deterministic function of the caller-supplied seed. A hook seed a trader can grind or predict lets strength 0 play like strength 9,000. In the mate-in-one position from the existing tests, strength 0 mates on 36 of 64 seeds. This is a trust assumption for the hook, not an engine defect.\n\n**Coverage rows.**\n- `play`: finding 1. Traced choice, application by `Rules.playLegal`, and equality with the checked `Rules.move` over the self-play probes with history and quiet counts. Legality and status held throughout.\n- `choose`: finding 1, same choice path as `play`.\n- `playAny`: holds. Seeded index into the legal list, reverts only with no legal move.\n- Constructor: holds. No arguments, no owner, no state, no funds, manifest matches with empty `constructorArgs`.\n- `Rules.move` and `Rules.playLegal`: holds. Status, check and insufficient-material flags agree with the corpora tests, which pass in full.\n- `Strength.fromShare`: finding 2.\n\n**What passed and what was not reached.** The full suite passes with 28 tests, and the worst observed cost per choice is about 600k gas, far below any block limit. Lone-king conversion, no-stalemate and mate-in-one guarantees held in the existing tests and in my probes. Not reached: a systematic search of knight-fork and discovered-attack blindness at the cap. One probe showed K+Q v K+N losing the queen to a fork at 9,000, which is the same one-ply horizon family as the main finding, and I did not reduce it to a single-call reproduction.","treeHash":null,"usage":{"cachedInputTokens":1582924,"inputTokens":450,"model":"claude-fable-5-1","outputTokens":41026,"runtime":"claude","turns":34,"wallClockMs":807376}},{"artifacts":[],"attempt":1,"bundleHash":null,"device":"b0001bc8a5c908cd","findings":[],"hash":"fbd0c4603676460e83847a140e73f5ce1b1f15ccfcf96a7e683024a4b0ab106d","nodeId":"df8b6817-46f8-4efb-88b6-fa091aa757ba","outcome":"completed","summary":"The promotion-capture finding is fixed, and I have nothing new to report. `.imd-findings.json` holds `{\"findings\":[]}`, and the working tree is clean.\n\n**The finding I raised (`be477030`, medium): fixed.** I ran my proof against the revised code from `test/scratch/` (removed afterwards). It failed on every one of its 32 strength/seed pairs before, and now all 3 tests pass. The fix does what it says:\n- `passers` now includes every enemy pawn on its seventh rank.\n- `_promotion` (`src/ChessEngineV5.sol:458`) charges for every square the pawn can queen on after our move: the square ahead if it's empty, and the diagonal squares holding one of our pieces other than the king. Each costs `_queening` plus the value of the piece taken.\n- That charge applies in `_risk` on every move and in `_exact`. I read the new `_queening` code and found no new defect.\n\n**The other specialist findings, rechecked on the revised code:**\n- **The pawn-promotion blindness finding (`93113a07`, medium):** it has the same root cause as mine. Its proof now passes 3/3.\n- **`Strength.fromShare` overflow (low, reported three times and merged):** fixed. It returns the cap when `paid >= depth`, and shifts both values by 17 bits before the multiplication could overflow. Its proof passes. The library isn't linked into `ChessEngineV5` anyway.\n- **Mate-in-one depending on piece order (low):** fixed. `_exact` (line 591) now calls `Bitboard.mateInOne(n, !c.white)` with no limit on checks tried, so a position and its colour mirror get the same verdict. The project's own Passers test covers the reported pair.\n- **Seed controls weak play (info):** the hook will need a seed the trader can't choose or predict. It's now documented in the contract header. It doesn't affect the engine launch.\n- **Stale size figure (info, reported several times):** the launch.json notes now give the real figure, 23,339 runtime bytes (23,365 initcode, 1,237 under EIP-170). The `foundry.toml` comment still says 22,111, but that's a comment in a configuration file and changes nothing.\n\n**Checks run:**\n- `forge build --sizes`: `ChessEngineV5` is 23,339 bytes. The brief's 22,268 is from before these fixes, as ADAPTATION.md records. The command prints an EIP-170 error, but only for the test-only helpers `ExactProbe`, `Judge` and `V5Probe`, which are never deployed.\n- `forge test`: all 63 tests pass across 15 suites.\n- `launch.json` matches the schema: one contract with an argument-free constructor and no owner.\n- The slither and aderyn leads are uninitialised locals that Solidity zero-initialises on purpose, plus style notes. None is a defect.","treeHash":null,"usage":{"cachedInputTokens":374964,"inputTokens":17,"model":"claude-opus-5-5","outputTokens":3523,"runtime":"claude","turns":10,"wallClockMs":269786}}],"verification":[{"checks":[{"durationMs":23694,"exitCode":0,"name":"build","output":"Compiling 39 files with Solc 0.8.26\nSolc 0.8.26 finished in 23.62s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:38:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:69:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":30043,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 5.14ms (4.74ms CPU time)\n\nRan 7 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 13565, ~: 13576)\nLogs:\n  Bound result 2\n  Bound result 7720163050410668809319186610898847014876632403017711861153290810\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 15880, ~: 16009)\nLogs:\n  Bound result 52752653068975355376030217583542378117474934304014420\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n  Bound result 115644421685197971522869462907937010200508354879680807440893294345848363048539\n\n[PASS] testFuzz_knownOverflowAboveMultiplicationBoundary(uint256,uint256) (runs: 256, μ: 16197, ~: 16249)\nLogs:\n  Bound result 115790931319495836852673940367340785359654322087626273952269823226806994004177\n  Bound result 77378145454728931272792971231187649261605511801554\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13742, ~: 13587)\nLogs:\n  Bound result 350171818\n  Bound result 104158\n\n[PASS] test_decidedPoints() (gas: 17614)\n[PASS] test_knownOverflowAtMultiplicationBoundary() (gas: 32254)\n[PASS] test_zeroInputs() (gas: 4427)\nSuite result: ok. 7 passed; 0 failed; 0 skipped; finished in 5.11ms (18.92ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 72.87ms (72.49ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 410952623)\nLogs:\n  positions: 216\n  context: 31815\n  context + legal moves: 72064\n  context + legal + cheap pass: 211140\n  context + legal + one exact re-score: 101288\n  full choice at 50%: 230617\n  per position: loop only: 84866\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 790.81ms (790.47ms CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5603991401)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 227987\n  max gas per choice: 598185\n  runtime bytes: 22268\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6301212)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2551767)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 5.56s (5.60s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11518235)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253263\n  converting side: gas max: 338056\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 95952817)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238225\n  converting side: gas max: 441008\n\n[PASS] test_conversionSweep() (gas: 1063793951)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241215\n  converting side: gas max: 441016\n\n[PASS] test_generatedConversionValidation() (gas: 858971679)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243031\n  converting side: gas max: 487086\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4163782)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2007877)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 5.72s (4.96s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 5.72s (25.63s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 7.39s (7.39s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6496329862)\nLogs:\n  game 0 result 2: \n  game 1 result 2: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5427754183058795682802489067878151629405184157693509641043824116254826824704 2156336383 3099538431 w 1307 net -500 best -100\n  gave rook/queen: 5427754183058794778899839172196121686052169999515999157796218921811330519040 2156338175 3099538431 w 779 net -500 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 8903592951012892839869185679495287067114716255949491190660030546078336320 2156332799 3099539199 w 166 net -900 best 500\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1406291468295779791110155289058693249606348797223262438293504 2156336127 3099537919 b 2268 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  games: 40\n  White mates: 15\n  Black mates: 24\n  stalemate: 0\n  too little material: 0\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 94\n  checks per game (x10): 115\n  captures per game (x10): 179\n  undo moves per game (x10): 27\n  longest quiet stretch, average per game: 9\n  games with a quiet stretch of 30+: 1\n  games fingerprint: 0x1b39ce9cce3b76f118a6d5af187bd26205513b69f9861aeba2a0cf2902caa50c\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 15\n  effort < 40%: 670 moves, gas avg 193281 max 394609; mates in one taken 6/6; walked into an avoidable mate 4; gave a piece 9, a rook or queen 2\n  effort 40-70%: 1937 moves, gas avg 208352 max 483281; mates in one taken 21/22; walked into an avoidable mate 12; gave a piece 23, a rook or queen 6\n  effort 70%+: 1162 moves, gas avg 227476 max 557478; mates in one taken 12/14; walked into an avoidable mate 5; gave a piece 8, a rook or queen 6\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 15.34s (15.34s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 29.91s (29.86s CPU time)\n\nRan 10 test suites in 29.91s (70.53s CPU time): 28 tests passed, 0 failed, 0 skipped (28 total tests)\n","passed":true},{"durationMs":52,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":141,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":730,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":39,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":242,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":81,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"05ef1be2137d6d3dcd7bb026b666123d4d2fa01903f626d357ea4e7b6a6465fa","verifiedTreeHash":"090a6298db9bbb3a1c674b64436e695efced008e","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":33328,"exitCode":0,"name":"build","output":"Compiling 40 files with Solc 0.8.26\nSolc 0.8.26 finished in 33.23s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:38:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:69:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:65:5:\n   |\n65 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:164:5:\n    |\n164 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":34653,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 13.17ms (9.16ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 130.95ms (126.92ms CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9038, ~: 8663)\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639934\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 12010, ~: 12147)\nLogs:\n  Bound result 98675786455975816189787461771706726246818060\n  Bound result 115792089237316195423570985008687809177483528689824374251995812301186882822118\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14680, ~: 15266)\nLogs:\n  Bound result 40\n  Bound result 220\n  Bound result 7204\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13875, ~: 13724)\nLogs:\n  Bound result 350171818\n  Bound result 104158\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13971, ~: 14208)\nLogs:\n  Bound result 115790931316423822261616749298837820974191452401146545504021692546770191622013\n  Bound result 115792089237316195423570985008687907853226449401853543589146114293801792301929\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 228.27ms (362.06ms CPU time)\n\nRan 9 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_blockedPawnQueensByCapture() (gas: 26923094)\n[PASS] test_captureSquareScoredAtItsPiece() (gas: 232119)\n[PASS] test_coveredPushSquareStillQueensByCapture() (gas: 37321844)\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295632)\n[PASS] test_pawnWithoutAMoveStillCounts() (gas: 15262277)\n[PASS] test_rookAndBishopEnding() (gas: 43593809)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 31840689)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 32268935)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 10479291)\nSuite result: ok. 9 passed; 0 failed; 0 skipped; finished in 254.35ms (1.03s CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 415641552)\nLogs:\n  positions: 216\n  context: 31937\n  context + legal moves: 72189\n  context + legal + cheap pass: 221433\n  context + legal + one exact re-score: 101665\n  full choice at 50%: 240537\n  per position: loop only: 84991\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 896.20ms (892.41ms CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11567180)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253282\n  converting side: gas max: 338075\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96340117)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238244\n  converting side: gas max: 441027\n\n[PASS] test_conversionSweep() (gas: 1067984378)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241234\n  converting side: gas max: 441035\n\n[PASS] test_generatedConversionValidation() (gas: 862544977)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243050\n  converting side: gas max: 487105\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4207547)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2009542)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 6.56s (5.66s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 6.56s (28.57s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5705533250)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 240785\n  max gas per choice: 1058571\n  runtime bytes: 23339\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6350234)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2561511)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.71s (6.74s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 7.99s (7.98s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6942886310)\nLogs:\n  game 0 result 2: \n  game 1 result 6: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 15\n  Black mates: 21\n  stalemate: 0\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 2\n  half-move cap: 1\n  average half-moves per game: 103\n  checks per game (x10): 116\n  captures per game (x10): 187\n  undo moves per game (x10): 37\n  longest quiet stretch, average per game: 12\n  games with a quiet stretch of 30+: 2\n  games fingerprint: 0x49db39c68fa03876cd9d4f463e7a97a13d00890224454ae8c6fb62af916485e1\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 725 moves, gas avg 205817 max 778142; mates in one taken 4/5; walked into an avoidable mate 4; gave a piece 11, a rook or queen 2\n  effort 40-70%: 2145 moves, gas avg 217601 max 765273; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1287 moves, gas avg 239138 max 747975; mates in one taken 7/8; walked into an avoidable mate 5; gave a piece 7, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 18.41s (18.41s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 34.47s (34.40s CPU time)\n\nRan 11 test suites in 34.47s (82.23s CPU time): 38 tests passed, 0 failed, 0 skipped (38 total tests)\n","passed":true},{"durationMs":57,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":162,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":852,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Passers.t.sol\":197,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"3984f40aea36d0ac2716b1d7f14ab7a570ee201ada579d217314d40480bb8bc6","verifiedTreeHash":"9fd66f74a6e893b1e5d207606b6eb8b4f98d6f3e","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":24688,"exitCode":0,"name":"build","output":"Compiling 39 files with Solc 0.8.26\nSolc 0.8.26 finished in 24.61s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:38:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:69:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":30633,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 7 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 13565, ~: 13576)\nLogs:\n  Bound result 1157920892373161954235709850086879078532699846656405640394575840079131295\n  Bound result 1157920892373161954235709850086879078532699846656405640394575840079131296\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 15880, ~: 16009)\nLogs:\n  Bound result 52752653068975355376030217583542378117474934304014420\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n  Bound result 115644421685197971522869462907937010200508354879680807440893294345848363048539\n\n[PASS] testFuzz_knownOverflowAboveMultiplicationBoundary(uint256,uint256) (runs: 256, μ: 16197, ~: 16249)\nLogs:\n  Bound result 115790931316423822261616749298837820974191452401146545504021692546770191622013\n  Bound result 1929\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13742, ~: 13587)\nLogs:\n  Bound result 340282366920938463463374607431767218571\n  Bound result 336879543251729078828740861367449546\n\n[PASS] test_decidedPoints() (gas: 17614)\n[PASS] test_knownOverflowAtMultiplicationBoundary() (gas: 32254)\n[PASS] test_zeroInputs() (gas: 4427)\nSuite result: ok. 7 passed; 0 failed; 0 skipped; finished in 5.05ms (17.33ms CPU time)\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 6.66ms (6.26ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 108.84ms (108.56ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 410952623)\nLogs:\n  positions: 216\n  context: 31815\n  context + legal moves: 72064\n  context + legal + cheap pass: 211140\n  context + legal + one exact re-score: 101288\n  full choice at 50%: 230617\n  per position: loop only: 84866\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 762.28ms (762.04ms CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5603991401)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 227987\n  max gas per choice: 598185\n  runtime bytes: 22268\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6301212)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2551767)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 5.62s (5.64s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11518235)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253263\n  converting side: gas max: 338056\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 95952817)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238225\n  converting side: gas max: 441008\n\n[PASS] test_conversionSweep() (gas: 1063793951)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241215\n  converting side: gas max: 441016\n\n[PASS] test_generatedConversionValidation() (gas: 858971679)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243031\n  converting side: gas max: 487086\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4163782)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2007877)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 5.75s (4.83s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 5.75s (25.85s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 7.58s (7.58s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6496329862)\nLogs:\n  game 0 result 2: \n  game 1 result 2: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5427754183058795682802489067878151629405184157693509641043824116254826824704 2156336383 3099538431 w 1307 net -500 best -100\n  gave rook/queen: 5427754183058794778899839172196121686052169999515999157796218921811330519040 2156338175 3099538431 w 779 net -500 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 8903592951012892839869185679495287067114716255949491190660030546078336320 2156332799 3099539199 w 166 net -900 best 500\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1406291468295779791110155289058693249606348797223262438293504 2156336127 3099537919 b 2268 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  games: 40\n  White mates: 15\n  Black mates: 24\n  stalemate: 0\n  too little material: 0\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 94\n  checks per game (x10): 115\n  captures per game (x10): 179\n  undo moves per game (x10): 27\n  longest quiet stretch, average per game: 9\n  games with a quiet stretch of 30+: 1\n  games fingerprint: 0x1b39ce9cce3b76f118a6d5af187bd26205513b69f9861aeba2a0cf2902caa50c\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 15\n  effort < 40%: 670 moves, gas avg 193281 max 394609; mates in one taken 6/6; walked into an avoidable mate 4; gave a piece 9, a rook or queen 2\n  effort 40-70%: 1937 moves, gas avg 208352 max 483281; mates in one taken 21/22; walked into an avoidable mate 12; gave a piece 23, a rook or queen 6\n  effort 70%+: 1162 moves, gas avg 227476 max 557478; mates in one taken 12/14; walked into an avoidable mate 5; gave a piece 8, a rook or queen 6\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 15.64s (15.64s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 30.50s (30.45s CPU time)\n\nRan 10 test suites in 30.51s (71.71s CPU time): 28 tests passed, 0 failed, 0 skipped (28 total tests)\n","passed":true},{"durationMs":53,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":141,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":730,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":39,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":242,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":81,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"3d012ad8c2c4c48936f57c00359ab0fa4cf240b23bedb4e7a5d06d74c5b34bfd","verifiedTreeHash":"bc209246972d0db6774adfc60384bc34466cae47","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":36309,"exitCode":0,"name":"build","output":"Compiling 44 files with Solc 0.8.26\nSolc 0.8.26 finished in 36.19s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:38:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:69:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Failures.t.sol:82:5:\n   |\n82 |     function test_playReportsTheEnd() public {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:169:5:\n    |\n169 |     function test_extremeInputsStillPlayLegally() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:195:5:\n    |\n195 |     function test_everyMoveRepeatsStillPlays() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:211:5:\n    |\n211 |     function test_playAnyCoversEveryLegalMove() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:230:5:\n    |\n230 |     function test_onlyMoveInCheckIsFound() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:57:5:\n   |\n57 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:114:5:\n    |\n114 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":34466,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 4.42ms (4.14ms CPU time)\n\nRan 13 tests for test/EngineV5Failures.t.sol:EngineV5FailuresTest\n[PASS] testFuzz_strengthAboveCapReverts(uint256,uint256) (runs: 256, μ: 45889, ~: 45822)\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630040\n\n[PASS] test_checkmatedBlackHasNoMove() (gas: 644840)\n[PASS] test_checkmatedWhiteHasNoMove() (gas: 1036269)\n[PASS] test_everyMoveRepeatsStillPlays() (gas: 1837457)\n[PASS] test_extremeInputsStillPlayLegally() (gas: 2509130)\n[PASS] test_onlyMoveInCheckIsFound() (gas: 1282218)\n[PASS] test_playAnyCoversEveryLegalMove() (gas: 8319617)\n[PASS] test_playReportsTheEnd() (gas: 291236)\n[PASS] test_rulesRefuseIllegalMoves() (gas: 155113)\n[PASS] test_rulesRefuseMovesIntoOrThroughCheck() (gas: 124398)\n[PASS] test_stalematedSideHasNoMove() (gas: 1168561)\n[PASS] test_strengthAboveCapReverts() (gas: 348009)\n[PASS] test_strengthAtCapAccepted() (gas: 674052)\nSuite result: ok. 13 passed; 0 failed; 0 skipped; finished in 33.00ms (77.17ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 88.36ms (88.12ms CPU time)\n\nRan 5 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295575)\n[PASS] test_rookAndBishopEnding() (gas: 39198940)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 28797711)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 29299240)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 9541555)\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 119.42ms (327.42ms CPU time)\n\nRan 8 tests for test/EngineV5Launch.t.sol:EngineV5LaunchTest\n[PASS] test_deployWithEthFails() (gas: 2038955)\n[PASS] test_deploysWithNoArgumentsUnderTheLimit() (gas: 6878018)\n[PASS] test_entryPointsAreStatic() (gas: 7375854)\n[PASS] test_rejectsEther() (gas: 6963800)\n[PASS] test_runtimeHasNoReachableEscapeOrStateOpcodes() (gas: 83080997)\n[PASS] test_secondDeployAtSameSaltFails() (gas: 17874786921034132594)\n[PASS] test_unknownSelectorAndShortCalldataRevert() (gas: 7010768)\n[PASS] test_usableImmediatelyWithoutInitialisation() (gas: 7428783)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 124.19ms (129.81ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 414889648)\nLogs:\n  positions: 216\n  context: 32041\n  context + legal moves: 72292\n  context + legal + cheap pass: 219278\n  context + legal + one exact re-score: 101720\n  full choice at 50%: 238222\n  per position: loop only: 85094\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 778.19ms (778.00ms CPU time)\n\nRan 3 tests for test/EngineV5Fuzz.t.sol:EngineV5FuzzTest\n[PASS] testFuzz_endedGameCannotBePlayed(uint256,uint256) (runs: 64, μ: 14346393, ~: 16391267)\nLogs:\n  Bound result 1929\n\n[PASS] testFuzz_engineMoveIsLegalAndConsistent(uint256,uint256,uint256,uint256,uint64,uint32,uint16) (runs: 200, μ: 4270205, ~: 4439527)\nLogs:\n  Bound result 17\n  Bound result 3683\n\n[PASS] testFuzz_fullAccuracyTakesBackRankMate(uint256,uint256,uint256,bool,uint256,uint64,uint32,uint16) (runs: 256, μ: 200098, ~: 196030)\nLogs:\n  Bound result 5\n  Bound result 0\n  Bound result 0\n\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 2.29s (3.15s CPU time)\n\nRan 1 test for test/EngineV5Invariant.t.sol:EngineV5InvariantTest\n[PASS]\nEngineV5InvariantTest invariants:\n[PASS] invariant_boardStaysAChessPosition\n[PASS] invariant_engineHoldsNothingAndNeverChanges\n[PASS] invariant_everyMoveIsLegalAndAppliedByTheRules\n[PASS] invariant_playableGamesNeverRevertAndEndedGamesNeverReopen\n EngineV5InvariantTest invariants (runs: 64, calls: 5120, reverts: 0)\n\n╭-------------------+--------------+-------+---------+----------╮\n| Contract          | Selector     | Calls | Reverts | Discards |\n+===============================================================+\n| EngineGameHandler | engineMove   | 1770  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | fallbackMove | 1666  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | overCap      | 1684  | 0       | 0        |\n╰-------------------+--------------+-------+---------+----------╯\n\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633991\n  Bound result 472\n  Bound result 325347753896723065725335294225148225945013211020210164472644667887471471243\n  Bound result 500\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639935\n  Bound result 8078\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633639\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630593\n  Bound result 1046\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639911\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630015\n  Bound result 1060\n  Bound result 219965131757247428322\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630935\n  Bound result 8686\n  Bound result 10002\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629940\n  Bound result 113189023667429972121102486751199464197328\n  Bound result 53419686471783709759539699008037761665418426900567749048260089324\n  Bound result 6336\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629983\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630035\n  Bound result 6022\n  Bound result 6886\n  Bound result 536\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129636935\n  Bound result 1771\n  Bound result 658\n  Bound result 14051\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629983\n  Bound result 5666\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639794\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629953\n  Bound result 85631721018328152743322367832\n  Bound result 6465\n  Bound result 240\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629965\n  Bound result 300000\n  Bound result 7467\n  Bound result 5078644568087237958092620134068482191741240924578500861545722996143758952670\n  Bound result 8084\n  Bound result 134\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129634520\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129634970\n  Bound result 9608\n  Bound result 10\n  Bound result 9990\n  Bound result 250\n  Bound result 3032\n  Bound result 2\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633099\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630278\n  Bound result 4116\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129636379\n  Bound result 16017\n  Bound result 9735128969929504193287564607008323310914960892100448486814838370458972860\n  Bound result 1088042461109646979420651520\n  Bound result 3738563737\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129634114\n  Bound result 7271\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633039\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 5.28s (5.28s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5676065535)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 237069\n  max gas per choice: 730409\n  runtime bytes: 23220\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6352002)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2563175)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.15s (6.19s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11570132)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253288\n  converting side: gas max: 338081\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96364887)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238250\n  converting side: gas max: 441033\n\n[PASS] test_conversionSweep() (gas: 1068246146)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241240\n  converting side: gas max: 441041\n\n[PASS] test_generatedConversionValidation() (gas: 862755763)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243056\n  converting side: gas max: 487111\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4208529)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2010158)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 6.63s (5.01s CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9036, ~: 8663)\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639934\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 12046, ~: 12425)\nLogs:\n  Bound result 7720163050410668809319186610898847014876632403017711861153290810\n  Bound result 115792089237308608278623082716449674780290723533940400841680961192604136952762\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14721, ~: 15266)\nLogs:\n  Bound result 3\n  Bound result 52752653068975355376030217583542378117474934304014420\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13893, ~: 13724)\nLogs:\n  Bound result 340282366920938463463374607431767211465\n  Bound result 336879543251729078857475318265394017\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13985, ~: 14208)\nLogs:\n  Bound result 115790931319495836852673940367340785359654322087626273952269823226806994004177\n  Bound result 115791782035857089704464134789627507020986732701801690007265759875169087701554\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 6.83s (2.69s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 6.83s (30.05s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 8.01s (8.00s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6846496724)\nLogs:\n  game 0 result 2: \n  game 1 result 1: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 16\n  Black mates: 21\n  stalemate: 1\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 102\n  checks per game (x10): 112\n  captures per game (x10): 187\n  undo moves per game (x10): 35\n  longest quiet stretch, average per game: 10\n  games with a quiet stretch of 30+: 0\n  games fingerprint: 0x981b82e1bf158d419277460ddb6e6a0d0752eff0e917358268d810c9f60e142a\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 714 moves, gas avg 200799 max 600110; mates in one taken 5/6; walked into an avoidable mate 5; gave a piece 10, a rook or queen 2\n  effort 40-70%: 2122 moves, gas avg 213426 max 690390; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1265 moves, gas avg 233650 max 659457; mates in one taken 7/8; walked into an avoidable mate 6; gave a piece 8, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 16.99s (16.99s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 33.98s (33.92s CPU time)\n\nRan 15 test suites in 33.98s (94.12s CPU time): 59 tests passed, 0 failed, 0 skipped (59 total tests)\n","passed":true},{"durationMs":54,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":122,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":824,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Failures.t.sol\":241,\"test/EngineV5Fuzz.t.sol\":128,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Invariant.t.sol\":248,\"test/EngineV5Launch.t.sol\":176,\"test/EngineV5Passers.t.sol\":147,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"466d2cde14d530cce9fc22d67d2f72a941802536a6610df829634730cd07fc1e","verifiedTreeHash":"031b1e76a306772ea154e7469d3fb3d2bce85d24","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":31183,"exitCode":0,"name":"build","output":"Compiling 40 files with Solc 0.8.26\nSolc 0.8.26 finished in 31.08s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:38:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:69:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:65:5:\n   |\n65 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:164:5:\n    |\n164 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":32154,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 3.04ms (2.68ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 81.44ms (80.91ms CPU time)\n\nRan 9 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_blockedPawnQueensByCapture() (gas: 26923094)\n[PASS] test_captureSquareScoredAtItsPiece() (gas: 232119)\n[PASS] test_coveredPushSquareStillQueensByCapture() (gas: 37321844)\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295632)\n[PASS] test_pawnWithoutAMoveStillCounts() (gas: 15262277)\n[PASS] test_rookAndBishopEnding() (gas: 43593809)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 31840689)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 32268935)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 10479291)\nSuite result: ok. 9 passed; 0 failed; 0 skipped; finished in 126.95ms (608.50ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 415641552)\nLogs:\n  positions: 216\n  context: 31937\n  context + legal moves: 72189\n  context + legal + cheap pass: 221433\n  context + legal + one exact re-score: 101665\n  full choice at 50%: 240537\n  per position: loop only: 84991\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 882.45ms (882.11ms CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9038, ~: 8663)\nLogs:\n  Bound result 7204\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 12010, ~: 12147)\nLogs:\n  Bound result 98675786455975816189787461771706726246818060\n  Bound result 115792089237316195423570985008687809177483528689824374251995812301186882822118\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14680, ~: 15266)\nLogs:\n  Bound result 1\n  Bound result 57896044618658097711785492504343953926634992332820282019728792003956564819966\n  Bound result 98675786455975816189787461771706726246818060\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13875, ~: 13724)\nLogs:\n  Bound result 7954871437728947267218130\n  Bound result 6328410786836601286214\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13971, ~: 14208)\nLogs:\n  Bound result 115790931316423822261616749298837820974191452401146545504021692546770191622013\n  Bound result 115792089237316195423570985008687907853226449401853543589146114293801792301929\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 2.75s (2.94s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11567180)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253282\n  converting side: gas max: 338075\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96340117)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238244\n  converting side: gas max: 441027\n\n[PASS] test_conversionSweep() (gas: 1067984378)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241234\n  converting side: gas max: 441035\n\n[PASS] test_generatedConversionValidation() (gas: 862544977)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243050\n  converting side: gas max: 487105\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4207547)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2009542)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 5.97s (5.34s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 6.03s (27.35s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5705533250)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 240785\n  max gas per choice: 1058571\n  runtime bytes: 23339\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6350234)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2561511)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.04s (6.07s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 8.44s (8.44s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6942886310)\nLogs:\n  game 0 result 2: \n  game 1 result 6: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 15\n  Black mates: 21\n  stalemate: 0\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 2\n  half-move cap: 1\n  average half-moves per game: 103\n  checks per game (x10): 116\n  captures per game (x10): 187\n  undo moves per game (x10): 37\n  longest quiet stretch, average per game: 12\n  games with a quiet stretch of 30+: 2\n  games fingerprint: 0x49db39c68fa03876cd9d4f463e7a97a13d00890224454ae8c6fb62af916485e1\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 725 moves, gas avg 205817 max 778142; mates in one taken 4/5; walked into an avoidable mate 4; gave a piece 11, a rook or queen 2\n  effort 40-70%: 2145 moves, gas avg 217601 max 765273; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1287 moves, gas avg 239138 max 747975; mates in one taken 7/8; walked into an avoidable mate 5; gave a piece 7, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 17.34s (17.34s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 32.01s (31.93s CPU time)\n\nRan 11 test suites in 32.01s (79.68s CPU time): 38 tests passed, 0 failed, 0 skipped (38 total tests)\n","passed":true},{"durationMs":48,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":162,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":852,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Passers.t.sol\":197,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true},{"durationMs":16178,"exitCode":0,"name":"slither","output":"[medium/medium] uninitialized-local at src/Bitboard.sol:643: Bitboard._targets(Bitboard.Pos,Bitboard.Gen,uint8,bool).ep (src/Bitboard.sol#643) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:480: Bitboard._anyLegal(Bitboard.Pos,bool).scratch (src/Bitboard.sol#480) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:425: Bitboard.isLegal(Bitboard.Pos,uint16,bool).scratch (src/Bitboard.sol#425) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:497: ChessEngineV5._queening(ChessEngineV5.Ctx,Bitboard.Pos,uint64,uint64,uint64,uint64,uint64).a (src/ChessEngineV5.sol#497) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:182: ChessEngineV5._choose(ChessEngineV5.Ctx,uint256,uint256,uint64[8],uint32,uint16).seen (src/ChessEngineV5.sol#182) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:400: Bitboard._legalTargets(Bitboard.Pos,Bitboard.Gen,Bitboard.Pos,uint8,bool).ep (src/Bitboard.sol#400) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:236: Bitboard.pieceAttacks(Bitboard.Pos,uint64,uint64,bool).a (src/Bitboard.sol#236) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:203: ChessEngineV5._choose(ChessEngineV5.Ctx,uint256,uint256,uint64[8],uint32,uint16).refined (src/ChessEngineV5.sol#203) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:580: Bitboard.mateInOne(Bitboard.Pos,bool,uint256).scratch (src/Bitboard.sol#580) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:414: ChessEngineV5._placement(ChessEngineV5.Ctx,uint8,uint8,uint8,uint8,bool,bool).near (src/ChessEngineV5.sol#414) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:276: ChessEngineV5._context(uint256,uint32,uint32,bool,bool).nonPawn (src/ChessEngineV5.sol#276) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:377: ChessEngineV5._cheap(ChessEngineV5.Ctx,uint16).squeeze (src/ChessEngineV5.sol#377) is a local variable never initialized\n[low/high] shadowing-local at src/ChessEngineV5.sol:817: ChessEngineV5._mop(ChessEngineV5.Ctx,uint8,uint8,uint8,bool,bool).at (src/ChessEngineV5.sol#705) shadows:","passed":true},{"durationMs":774,"exitCode":0,"name":"aderyn","output":"[high] unsafe-casting at src/Bitboard.sol:247: Unsafe Casting of integers\n[low] empty-require-revert at src/ChessEngineV5.sol:157: Empty `require()` / `revert()` Statement\n[low] internal-function-used-once at src/Bitboard.sol:199: Internal Function Used Only Once (9 places)\n[low] large-numeric-literal at src/ChessEngineV5.sol:34: Large Numeric Literal (15 places)\n[low] literal-instead-of-constant at src/Bitboard.sol:35: Literal Instead of Constant (336 places)\n[low] push-zero-opcode at src/Bitboard.sol:2: PUSH0 Opcode (6 places)\n[low] uninitialized-local-variable at src/ChessEngineV5.sol:164: Uninitialized Local Variable (7 places)\n[low] unspecific-solidity-pragma at src/ChessEngineV5.sol:2: Unspecific Solidity Pragma (2 places)","passed":true},{"durationMs":6957,"exitCode":0,"name":"proof be4770304850","output":"Compiling 31 files with Solc 0.8.26\nSolc 0.8.26 finished in 6.31s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:38:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:69:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\n\nRan 3 tests for test/imd-proof-5ce28f01/Proof_be4770304850.t.sol:CapturePromotionTest\n[PASS] test_blockedPushStillQueensByCapture() (gas: 13071987)\n[PASS] test_blockedPushStillQueensByCaptureMirror() (gas: 13095924)\n[PASS] test_coveredPushSquareStillQueensByCapture() (gas: 18321019)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 51.27ms (134.86ms CPU time)\n\nRan 1 test suite in 51.99ms (51.27ms CPU time): 3 tests passed, 0 failed, 0 skipped (3 total tests)\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"4ac1521782c09d38cc010e143da31e081ac861174ed05827df3c95aa57f3cca8","verifiedTreeHash":"4c65b4a295faa6148a5cb0dafa68d2546c60754f","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":45029,"exitCode":0,"name":"build","output":"Compiling 44 files with Solc 0.8.26\nSolc 0.8.26 finished in 44.93s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:38:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:537:69:\n    |\n537 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Failures.t.sol:82:5:\n   |\n82 |     function test_playReportsTheEnd() public {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:169:5:\n    |\n169 |     function test_extremeInputsStillPlayLegally() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:195:5:\n    |\n195 |     function test_everyMoveRepeatsStillPlays() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:211:5:\n    |\n211 |     function test_playAnyCoversEveryLegalMove() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:230:5:\n    |\n230 |     function test_onlyMoveInCheckIsFound() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:65:5:\n   |\n65 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:164:5:\n    |\n164 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":32235,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 6.20ms (5.75ms CPU time)\n\nRan 13 tests for test/EngineV5Failures.t.sol:EngineV5FailuresTest\n[PASS] testFuzz_strengthAboveCapReverts(uint256,uint256) (runs: 256, μ: 45780, ~: 45718)\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630155\n\n[PASS] test_checkmatedBlackHasNoMove() (gas: 643680)\n[PASS] test_checkmatedWhiteHasNoMove() (gas: 1035229)\n[PASS] test_everyMoveRepeatsStillPlays() (gas: 1837427)\n[PASS] test_extremeInputsStillPlayLegally() (gas: 2508194)\n[PASS] test_onlyMoveInCheckIsFound() (gas: 1280970)\n[PASS] test_playAnyCoversEveryLegalMove() (gas: 8319513)\n[PASS] test_playReportsTheEnd() (gas: 291016)\n[PASS] test_rulesRefuseIllegalMoves() (gas: 155113)\n[PASS] test_rulesRefuseMovesIntoOrThroughCheck() (gas: 124398)\n[PASS] test_stalematedSideHasNoMove() (gas: 1166361)\n[PASS] test_strengthAboveCapReverts() (gas: 347367)\n[PASS] test_strengthAtCapAccepted() (gas: 673740)\nSuite result: ok. 13 passed; 0 failed; 0 skipped; finished in 108.07ms (144.86ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 111.43ms (111.15ms CPU time)\n\nRan 8 tests for test/EngineV5Launch.t.sol:EngineV5LaunchTest\n[PASS] test_deployWithEthFails() (gas: 2049777)\n[PASS] test_deploysWithNoArgumentsUnderTheLimit() (gas: 6913693)\n[PASS] test_entryPointsAreStatic() (gas: 7411120)\n[PASS] test_rejectsEther() (gas: 6999274)\n[PASS] test_runtimeHasNoReachableEscapeOrStateOpcodes() (gas: 83714282)\n[PASS] test_secondDeployAtSameSaltFails() (gas: 17874786921034135943)\n[PASS] test_unknownSelectorAndShortCalldataRevert() (gas: 7046242)\n[PASS] test_usableImmediatelyWithoutInitialisation() (gas: 7464049)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 135.54ms (143.85ms CPU time)\n\nRan 9 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_blockedPawnQueensByCapture() (gas: 26923094)\n[PASS] test_captureSquareScoredAtItsPiece() (gas: 232119)\n[PASS] test_coveredPushSquareStillQueensByCapture() (gas: 37321844)\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295632)\n[PASS] test_pawnWithoutAMoveStillCounts() (gas: 15262277)\n[PASS] test_rookAndBishopEnding() (gas: 43593809)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 31840689)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 32268935)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 10479291)\nSuite result: ok. 9 passed; 0 failed; 0 skipped; finished in 144.88ms (602.68ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 415641552)\nLogs:\n  positions: 216\n  context: 31937\n  context + legal moves: 72189\n  context + legal + cheap pass: 221433\n  context + legal + one exact re-score: 101665\n  full choice at 50%: 240537\n  per position: loop only: 84991\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 851.18ms (850.89ms CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9032, ~: 8663)\nLogs:\n  Bound result 7720163050410668809319186610898847014876632403017711861153290810\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 11998, ~: 12058)\nLogs:\n  Bound result 7204\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639468\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14692, ~: 15266)\nLogs:\n  Bound result 1\n  Bound result 57896044618658097711785492504343953926634992332820282019728792003956564819966\n  Bound result 98675786455975816189787461771706726246818060\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13891, ~: 13724)\nLogs:\n  Bound result 340282366920938463463374607431767211465\n  Bound result 336879543251729078857475318265394017\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13985, ~: 14208)\nLogs:\n  Bound result 115790931316423822261616749298837820974191452401146545504021692546770191622013\n  Bound result 115792089237316195423570985008687907853226449401853543589146114293801792301929\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 2.03s (2.89s CPU time)\n\nRan 3 tests for test/EngineV5Fuzz.t.sol:EngineV5FuzzTest\n[PASS] testFuzz_endedGameCannotBePlayed(uint256,uint256) (runs: 64, μ: 14710647, ~: 16430413)\nLogs:\n  Bound result 1929\n\n[PASS] testFuzz_engineMoveIsLegalAndConsistent(uint256,uint256,uint256,uint256,uint64,uint32,uint16) (runs: 200, μ: 4367159, ~: 4614498)\nLogs:\n  Bound result 57\n  Bound result 681\n\n[PASS] testFuzz_fullAccuracyTakesBackRankMate(uint256,uint256,uint256,bool,uint256,uint64,uint32,uint16) (runs: 256, μ: 199342, ~: 195613)\nLogs:\n  Bound result 2\n  Bound result 0\n  Bound result 5\n\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 2.30s (3.26s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11567180)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253282\n  converting side: gas max: 338075\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96340117)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238244\n  converting side: gas max: 441027\n\n[PASS] test_conversionSweep() (gas: 1067984378)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241234\n  converting side: gas max: 441035\n\n[PASS] test_generatedConversionValidation() (gas: 862544977)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243050\n  converting side: gas max: 487105\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4207547)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2009542)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 2.52s (4.91s CPU time)\n\nRan 1 test for test/EngineV5Invariant.t.sol:EngineV5InvariantTest\n[PASS]\nEngineV5InvariantTest invariants:\n[PASS] invariant_boardStaysAChessPosition\n[PASS] invariant_engineHoldsNothingAndNeverChanges\n[PASS] invariant_everyMoveIsLegalAndAppliedByTheRules\n[PASS] invariant_playableGamesNeverRevertAndEndedGamesNeverReopen\n EngineV5InvariantTest invariants (runs: 64, calls: 5120, reverts: 0)\n\n╭-------------------+--------------+-------+---------+----------╮\n| Contract          | Selector     | Calls | Reverts | Discards |\n+===============================================================+\n| EngineGameHandler | engineMove   | 1770  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | fallbackMove | 1666  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | overCap      | 1684  | 0       | 0        |\n╰-------------------+--------------+-------+---------+----------╯\n\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633587\n  Bound result 2464\n  Bound result 325347753896723065725335294225148225945013211020210164472644667887471471243\n  Bound result 500\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639935\n  Bound result 8078\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129636026\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633837\n  Bound result 3372\n  Bound result 11708\n  Bound result 11400714819323198485\n  Bound result 3226\n  Bound result 219965131757247428322\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630935\n  Bound result 8686\n  Bound result 10002\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629940\n  Bound result 113189023667429972121102486751199464197328\n  Bound result 53419686471783709759539699008037761665418426900567749048260089324\n  Bound result 6273\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629983\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630035\n  Bound result 4276\n  Bound result 9657\n  Bound result 3143\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129636935\n  Bound result 575\n  Bound result 3902\n  Bound result 16565\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629983\n  Bound result 7741\n  Bound result 11449\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629953\n  Bound result 85631721018328152743322367832\n  Bound result 2407\n  Bound result 245\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629955\n  Bound result 550000\n  Bound result 506\n  Bound result 5078644568087237958092620134068482191741240924578500861545722996143758952670\n  Bound result 7781\n  Bound result 134\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129635474\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633842\n  Bound result 124\n  Bound result 10\n  Bound result 9990\n  Bound result 85\n  Bound result 3294\n  Bound result 2\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633482\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633696\n  Bound result 4918\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129632071\n  Bound result 17957\n  Bound result 9735128969929504193287564607008323310914960892100448486814838370458972860\n  Bound result 9223456480722185093120\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630391\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129632233\n  Bound result 7271\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630574\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 5.66s (5.66s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5705533250)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 240785\n  max gas per choice: 1058571\n  runtime bytes: 23339\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6350234)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2561511)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.54s (6.57s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 8.73s (8.73s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 9.23s (29.96s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6942886310)\nLogs:\n  game 0 result 2: \n  game 1 result 6: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 15\n  Black mates: 21\n  stalemate: 0\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 2\n  half-move cap: 1\n  average half-moves per game: 103\n  checks per game (x10): 116\n  captures per game (x10): 187\n  undo moves per game (x10): 37\n  longest quiet stretch, average per game: 12\n  games with a quiet stretch of 30+: 2\n  games fingerprint: 0x49db39c68fa03876cd9d4f463e7a97a13d00890224454ae8c6fb62af916485e1\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 725 moves, gas avg 205817 max 778142; mates in one taken 4/5; walked into an avoidable mate 4; gave a piece 11, a rook or queen 2\n  effort 40-70%: 2145 moves, gas avg 217601 max 765273; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1287 moves, gas avg 239138 max 747975; mates in one taken 7/8; walked into an avoidable mate 5; gave a piece 7, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 17.58s (17.58s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 32.07s (31.99s CPU time)\n\nRan 15 test suites in 32.07s (88.02s CPU time): 63 tests passed, 0 failed, 0 skipped (63 total tests)\n","passed":true},{"durationMs":92,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":162,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":852,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Failures.t.sol\":241,\"test/EngineV5Fuzz.t.sol\":128,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Invariant.t.sol\":248,\"test/EngineV5Launch.t.sol\":176,\"test/EngineV5Passers.t.sol\":197,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"a6bb738649c6ba4cd4b2c18d9a4022425782939e5a069f4b7a55fd4352b9de65","verifiedTreeHash":"76496d90e03bc10edcfe02d30a6cbd091ccfe5b2","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":33211,"exitCode":0,"name":"build","output":"Compiling 43 files with Solc 0.8.26\nSolc 0.8.26 finished in 33.09s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:38:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:424:69:\n    |\n424 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Failures.t.sol:82:5:\n   |\n82 |     function test_playReportsTheEnd() public {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:169:5:\n    |\n169 |     function test_extremeInputsStillPlayLegally() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:195:5:\n    |\n195 |     function test_everyMoveRepeatsStillPlays() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:211:5:\n    |\n211 |     function test_playAnyCoversEveryLegalMove() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Failures.t.sol:230:5:\n    |\n230 |     function test_onlyMoveInCheckIsFound() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":36038,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 6.21ms (5.58ms CPU time)\n\nRan 13 tests for test/EngineV5Failures.t.sol:EngineV5FailuresTest\n[PASS] testFuzz_strengthAboveCapReverts(uint256,uint256) (runs: 256, μ: 45671, ~: 45604)\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630020\n\n[PASS] test_checkmatedBlackHasNoMove() (gas: 642400)\n[PASS] test_checkmatedWhiteHasNoMove() (gas: 1034069)\n[PASS] test_everyMoveRepeatsStillPlays() (gas: 1837332)\n[PASS] test_extremeInputsStillPlayLegally() (gas: 2489278)\n[PASS] test_onlyMoveInCheckIsFound() (gas: 1278112)\n[PASS] test_playAnyCoversEveryLegalMove() (gas: 8318792)\n[PASS] test_playReportsTheEnd() (gas: 289430)\n[PASS] test_rulesRefuseIllegalMoves() (gas: 155113)\n[PASS] test_rulesRefuseMovesIntoOrThroughCheck() (gas: 124398)\n[PASS] test_stalematedSideHasNoMove() (gas: 1163921)\n[PASS] test_strengthAboveCapReverts() (gas: 346629)\n[PASS] test_strengthAtCapAccepted() (gas: 668800)\nSuite result: ok. 13 passed; 0 failed; 0 skipped; finished in 34.96ms (91.46ms CPU time)\n\nRan 8 tests for test/EngineV5Launch.t.sol:EngineV5LaunchTest\n[PASS] test_deployWithEthFails() (gas: 1957380)\n[PASS] test_deploysWithNoArgumentsAtTheBriefsSize() (gas: 6598403)\n[PASS] test_entryPointsAreStatic() (gas: 7093083)\n[PASS] test_rejectsEther() (gas: 6685470)\n[PASS] test_runtimeHasNoReachableEscapeOrStateOpcodes() (gas: 78479758)\n[PASS] test_secondDeployAtSameSaltFails() (gas: 17874786921034106716)\n[PASS] test_unknownSelectorAndShortCalldataRevert() (gas: 6732438)\n[PASS] test_usableImmediatelyWithoutInitialisation() (gas: 7146485)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 91.53ms (101.49ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 117.07ms (116.59ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 410952623)\nLogs:\n  positions: 216\n  context: 31815\n  context + legal moves: 72064\n  context + legal + cheap pass: 211140\n  context + legal + one exact re-score: 101288\n  full choice at 50%: 230617\n  per position: loop only: 84866\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 888.62ms (888.27ms CPU time)\n\nRan 7 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 13564, ~: 13684)\nLogs:\n  Bound result 2\n  Bound result 7720163050410668809319186610898847014876632403017711861153290810\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 15873, ~: 15889)\nLogs:\n  Bound result 52752653068975355376030217583542378117474934304014420\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n  Bound result 115644421685197971522869462907937010200508354879680807440893294345848363048539\n\n[PASS] testFuzz_knownOverflowAboveMultiplicationBoundary(uint256,uint256) (runs: 256, μ: 16198, ~: 16249)\nLogs:\n  Bound result 115790931316423822261616749298837820974191451966253870901447025985801736051985\n  Bound result 209218767629005482\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13750, ~: 13587)\nLogs:\n  Bound result 7954871437728947267218130\n  Bound result 6328410786836601286214\n\n[PASS] test_decidedPoints() (gas: 17614)\n[PASS] test_knownOverflowAtMultiplicationBoundary() (gas: 32254)\n[PASS] test_zeroInputs() (gas: 4427)\nSuite result: ok. 7 passed; 0 failed; 0 skipped; finished in 2.31s (3.16s CPU time)\n\nRan 3 tests for test/EngineV5Fuzz.t.sol:EngineV5FuzzTest\n[PASS] testFuzz_endedGameCannotBePlayed(uint256,uint256) (runs: 64, μ: 14729462, ~: 16299651)\nLogs:\n  Bound result 1929\n\n[PASS] testFuzz_engineMoveIsLegalAndConsistent(uint256,uint256,uint256,uint256,uint64,uint32,uint16) (runs: 200, μ: 4226052, ~: 4402722)\nLogs:\n  Bound result 57\n  Bound result 681\n\n[PASS] testFuzz_fullAccuracyTakesBackRankMate(uint256,uint256,uint256,bool,uint256,uint64,uint32,uint16) (runs: 256, μ: 199001, ~: 195089)\nLogs:\n  Bound result 1\n  Bound result 0\n  Bound result 3\n\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 2.42s (3.23s CPU time)\n\nRan 1 test for test/EngineV5Invariant.t.sol:EngineV5InvariantTest\n[PASS]\nEngineV5InvariantTest invariants:\n[PASS] invariant_boardStaysAChessPosition\n[PASS] invariant_engineHoldsNothingAndNeverChanges\n[PASS] invariant_everyMoveIsLegalAndAppliedByTheRules\n[PASS] invariant_playableGamesNeverRevertAndEndedGamesNeverReopen\n EngineV5InvariantTest invariants (runs: 64, calls: 5120, reverts: 0)\n\n╭-------------------+--------------+-------+---------+----------╮\n| Contract          | Selector     | Calls | Reverts | Discards |\n+===============================================================+\n| EngineGameHandler | engineMove   | 1770  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | fallbackMove | 1666  | 0       | 0        |\n|-------------------+--------------+-------+---------+----------|\n| EngineGameHandler | overCap      | 1684  | 0       | 0        |\n╰-------------------+--------------+-------+---------+----------╯\n\nLogs:\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633878\n  Bound result 711\n  Bound result 325347753896723065725335294225148225945013211020210164472644667887471471243\n  Bound result 120\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639935\n  Bound result 8078\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633530\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630658\n  Bound result 536\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639627\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630015\n  Bound result 14\n  Bound result 219965131757247428322\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630935\n  Bound result 8686\n  Bound result 10002\n  Bound result 72624976668147840\n  Bound result 113189023667429972121102486751199464197328\n  Bound result 53419686471783709759539699008037761665418426900567749048260089324\n  Bound result 7919\n  Bound result 411369862228566123880278864766078120783549026323861987005628415\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630035\n  Bound result 5622\n  Bound result 6862\n  Bound result 3177\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129636935\n  Bound result 806\n  Bound result 723\n  Bound result 13784\n  Bound result 411369862228566123880278864766078120783549026323861987005628415\n  Bound result 4887\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129639501\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629953\n  Bound result 85631721018328152743322367832\n  Bound result 506\n  Bound result 131\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129630335\n  Bound result 35569892\n  Bound result 7198\n  Bound result 5078644568087237958092620134068482191741240924578500861545722996143758952670\n  Bound result 6976\n  Bound result 134\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633265\n  Bound result 168368230\n  Bound result 208\n  Bound result 30\n  Bound result 1\n  Bound result 127\n  Bound result 3198\n  Bound result 2\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129637729\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129629952\n  Bound result 3972\n  Bound result 18374403900871474689\n  Bound result 15670\n  Bound result 9735128969929504193287564607008323310914960892100448486814838370458972860\n  Bound result 10723151780598845931\n  Bound result 447301751254033913445893214690834296930546521452\n  Bound result 211842811\n  Bound result 7271\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913129633429\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 5.29s (5.29s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5603991401)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 227987\n  max gas per choice: 598185\n  runtime bytes: 22268\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6301212)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2551767)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.13s (6.16s CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11518235)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253263\n  converting side: gas max: 338056\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 95952817)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238225\n  converting side: gas max: 441008\n\n[PASS] test_conversionSweep() (gas: 1063793951)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241215\n  converting side: gas max: 441016\n\n[PASS] test_generatedConversionValidation() (gas: 858971679)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243031\n  converting side: gas max: 487086\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4163782)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2007877)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 7.03s (5.42s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 7.03s (31.36s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 8.24s (8.24s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6496329862)\nLogs:\n  game 0 result 2: \n  game 1 result 2: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5427754183058795682802489067878151629405184157693509641043824116254826824704 2156336383 3099538431 w 1307 net -500 best -100\n  gave rook/queen: 5427754183058794778899839172196121686052169999515999157796218921811330519040 2156338175 3099538431 w 779 net -500 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 8903592951012892839869185679495287067114716255949491190660030546078336320 2156332799 3099539199 w 166 net -900 best 500\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1406291468295779791110155289058693249606348797223262438293504 2156336127 3099537919 b 2268 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  games: 40\n  White mates: 15\n  Black mates: 24\n  stalemate: 0\n  too little material: 0\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 94\n  checks per game (x10): 115\n  captures per game (x10): 179\n  undo moves per game (x10): 27\n  longest quiet stretch, average per game: 9\n  games with a quiet stretch of 30+: 1\n  games fingerprint: 0x1b39ce9cce3b76f118a6d5af187bd26205513b69f9861aeba2a0cf2902caa50c\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 15\n  effort < 40%: 670 moves, gas avg 193281 max 394609; mates in one taken 6/6; walked into an avoidable mate 4; gave a piece 9, a rook or queen 2\n  effort 40-70%: 1937 moves, gas avg 208352 max 483281; mates in one taken 21/22; walked into an avoidable mate 12; gave a piece 23, a rook or queen 6\n  effort 70%+: 1162 moves, gas avg 227476 max 557478; mates in one taken 12/14; walked into an avoidable mate 5; gave a piece 8, a rook or queen 6\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 15.94s (15.93s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 35.85s (35.78s CPU time)\n\nRan 14 test suites in 35.85s (91.37s CPU time): 53 tests passed, 0 failed, 0 skipped (53 total tests)\n","passed":true},{"durationMs":63,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":141,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":730,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":39,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Failures.t.sol\":241,\"test/EngineV5Fuzz.t.sol\":128,\"test/EngineV5Games.t.sol\":242,\"test/EngineV5Invariant.t.sol\":248,\"test/EngineV5Launch.t.sol\":174,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":81,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"b22de11a225f2663d1cb7a8864f61d95f695f96aada85022bf351d7d100828fb","verifiedTreeHash":"a0cd78e7b3576cc9ff1ae6b8079eea723ca21f77","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":29318,"exitCode":0,"name":"build","output":"Compiling 40 files with Solc 0.8.26\nSolc 0.8.26 finished in 29.23s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:38:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:69:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:57:5:\n   |\n57 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:114:5:\n    |\n114 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":30540,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 2.89ms (2.55ms CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9070, ~: 8663)\nLogs:\n  Bound result 115787394694693535583108372188882729839798988984626920819245248888203517105172\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 12038, ~: 12286)\nLogs:\n  Bound result 98675786455975816189787461771706726246818060\n  Bound result 115792089237316195423570985008687809177483528689824374251995812301186882822118\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14688, ~: 15266)\nLogs:\n  Bound result 40\n  Bound result 92380558191876875950330378356721894161515031172764357769898364564\n  Bound result 7204\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13875, ~: 13724)\nLogs:\n  Bound result 7954871437728947267218130\n  Bound result 6328410786836601286214\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13967, ~: 14208)\nLogs:\n  Bound result 115790931316423822261616749298837820974191451965793907633817189432073050508889\n  Bound result 115792089237316195423570985008687907853269984665640564039457584007913104707520\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 35.23ms (83.09ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 76.56ms (76.22ms CPU time)\n\nRan 5 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295575)\n[PASS] test_rookAndBishopEnding() (gas: 39198940)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 28797711)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 29299240)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 9541555)\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 107.11ms (312.20ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 414889648)\nLogs:\n  positions: 216\n  context: 32041\n  context + legal moves: 72292\n  context + legal + cheap pass: 219278\n  context + legal + one exact re-score: 101720\n  full choice at 50%: 238222\n  per position: loop only: 85094\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 844.86ms (844.65ms CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11570132)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253288\n  converting side: gas max: 338081\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96364887)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238250\n  converting side: gas max: 441033\n\n[PASS] test_conversionSweep() (gas: 1068246146)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241240\n  converting side: gas max: 441041\n\n[PASS] test_generatedConversionValidation() (gas: 862755763)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243056\n  converting side: gas max: 487111\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4208529)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2010158)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 5.75s (4.93s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 5.86s (26.66s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5676065535)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 237069\n  max gas per choice: 730409\n  runtime bytes: 23220\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6352002)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2563175)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 5.95s (5.98s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 7.83s (7.83s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6846496724)\nLogs:\n  game 0 result 2: \n  game 1 result 1: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 16\n  Black mates: 21\n  stalemate: 1\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 102\n  checks per game (x10): 112\n  captures per game (x10): 187\n  undo moves per game (x10): 35\n  longest quiet stretch, average per game: 10\n  games with a quiet stretch of 30+: 0\n  games fingerprint: 0x981b82e1bf158d419277460ddb6e6a0d0752eff0e917358268d810c9f60e142a\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 714 moves, gas avg 200799 max 600110; mates in one taken 5/6; walked into an avoidable mate 5; gave a piece 10, a rook or queen 2\n  effort 40-70%: 2122 moves, gas avg 213426 max 690390; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1265 moves, gas avg 233650 max 659457; mates in one taken 7/8; walked into an avoidable mate 6; gave a piece 8, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 16.54s (16.54s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 30.40s (30.34s CPU time)\n\nRan 11 test suites in 30.41s (73.40s CPU time): 34 tests passed, 0 failed, 0 skipped (34 total tests)\n","passed":true},{"durationMs":53,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":122,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":824,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Passers.t.sol\":147,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true},{"durationMs":16347,"exitCode":0,"name":"slither","output":"[medium/medium] uninitialized-local at src/Bitboard.sol:643: Bitboard._targets(Bitboard.Pos,Bitboard.Gen,uint8,bool).ep (src/Bitboard.sol#643) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:480: Bitboard._anyLegal(Bitboard.Pos,bool).scratch (src/Bitboard.sol#480) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:475: ChessEngineV5._promotion(ChessEngineV5.Ctx,Bitboard.Pos).a (src/ChessEngineV5.sol#475) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:425: Bitboard.isLegal(Bitboard.Pos,uint16,bool).scratch (src/Bitboard.sol#425) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:181: ChessEngineV5._choose(ChessEngineV5.Ctx,uint256,uint256,uint64[8],uint32,uint16).seen (src/ChessEngineV5.sol#181) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:400: Bitboard._legalTargets(Bitboard.Pos,Bitboard.Gen,Bitboard.Pos,uint8,bool).ep (src/Bitboard.sol#400) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:236: Bitboard.pieceAttacks(Bitboard.Pos,uint64,uint64,bool).a (src/Bitboard.sol#236) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:202: ChessEngineV5._choose(ChessEngineV5.Ctx,uint256,uint256,uint64[8],uint32,uint16).refined (src/ChessEngineV5.sol#202) is a local variable never initialized\n[medium/medium] uninitialized-local at src/Bitboard.sol:580: Bitboard.mateInOne(Bitboard.Pos,bool,uint256).scratch (src/Bitboard.sol#580) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:413: ChessEngineV5._placement(ChessEngineV5.Ctx,uint8,uint8,uint8,uint8,bool,bool).near (src/ChessEngineV5.sol#413) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:275: ChessEngineV5._context(uint256,uint32,uint32,bool,bool).nonPawn (src/ChessEngineV5.sol#275) is a local variable never initialized\n[medium/medium] uninitialized-local at src/ChessEngineV5.sol:376: ChessEngineV5._cheap(ChessEngineV5.Ctx,uint16).squeeze (src/ChessEngineV5.sol#376) is a local variable never initialized\n[low/high] shadowing-local at src/ChessEngineV5.sol:789: ChessEngineV5._mop(ChessEngineV5.Ctx,uint8,uint8,uint8,bool,bool).at (src/ChessEngineV5.sol#677) shadows:","passed":true},{"durationMs":745,"exitCode":0,"name":"aderyn","output":"[high] unsafe-casting at src/Bitboard.sol:247: Unsafe Casting of integers\n[low] empty-require-revert at src/ChessEngineV5.sol:156: Empty `require()` / `revert()` Statement\n[low] internal-function-used-once at src/Bitboard.sol:199: Internal Function Used Only Once (9 places)\n[low] large-numeric-literal at src/ChessEngineV5.sol:33: Large Numeric Literal (15 places)\n[low] literal-instead-of-constant at src/Bitboard.sol:35: Literal Instead of Constant (336 places)\n[low] push-zero-opcode at src/Bitboard.sol:2: PUSH0 Opcode (6 places)\n[low] uninitialized-local-variable at src/ChessEngineV5.sol:163: Uninitialized Local Variable (7 places)\n[low] unspecific-solidity-pragma at src/ChessEngineV5.sol:2: Unspecific Solidity Pragma (2 places)","passed":true},{"durationMs":7780,"exitCode":0,"name":"proof 10cde183415b","output":"Compiling 31 files with Solc 0.8.26\nSolc 0.8.26 finished in 7.15s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:38:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:69:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\n\nRan 3 tests for test/imd-proof-141718cb/Proof_10cde183415b.t.sol:PasserBlindTest\n[PASS] test_rookAndBishopEnding() (gas: 10121460)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 7446284)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 7619838)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 54.62ms (112.02ms CPU time)\n\nRan 1 test suite in 55.57ms (54.62ms CPU time): 3 tests passed, 0 failed, 0 skipped (3 total tests)\n","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"bcde03234f132f7b3473538efde58b78e37e71ff945dec77c0c1c21348434a28","verifiedTreeHash":"3f5d95af1ed09a278680ff82d311b6281bd9ca99","verifierVersion":"0.1.0+d372f99e"},{"checks":[{"durationMs":31352,"exitCode":0,"name":"build","output":"Compiling 40 files with Solc 0.8.26\nSolc 0.8.26 finished in 31.27s\nCompiler run successful with warnings:\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:22:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                      ^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:108:38:\n    |\n108 |             rook = ((FILE_A << f) | (RANK_1 << (8 * r))) ^ bit;\n    |                                      ^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:109:57:\n    |\n109 |             uint64 d = f >= r ? DIAG >> (8 * (f - r)) : DIAG << (8 * (r - f));\n    |                                                         ^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/Bitboard.sol:110:65:\n    |\n110 |             uint64 a = f + r <= 7 ? ANTI >> (8 * (7 - f - r)) : ANTI << (8 * (f + r - 7));\n    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:38:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nWarning (3149): The result type of the shift operation is equal to the type of the first operand (uint64) ignoring the (larger) type of the second operand (uint256) which might be unexpected. Silence this warning by either converting the first or the second operand to the type of the other.\n   --> src/ChessEngineV5.sol:509:69:\n    |\n509 |             uint64 ahead = c.white ? ~uint64(0) << ((r + 1) * 8) : (uint64(1) << (r * 8)) - 1;\n    |                                                                     ^^^^^^^^^^^^^^^^^^^^\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/Bitboard.t.sol:141:5:\n    |\n141 |     function castles(uint16[17] memory line, uint256 plies, uint16 castle) internal returns (bool found) {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n  --> test/EngineV5Passers.t.sol:57:5:\n   |\n57 |     function stopsAll(Case memory t) internal {\n   |     ^ (Relevant source part starts here and spans across multiple lines).\n\nWarning (2018): Function state mutability can be restricted to view\n   --> test/EngineV5Passers.t.sol:114:5:\n    |\n114 |     function test_unstoppablePawnIsSoldDearly() public {\n    |     ^ (Relevant source part starts here and spans across multiple lines).\n\n","passed":true},{"durationMs":33801,"exitCode":0,"name":"test","output":"No files changed, compilation skipped\n\nRan 1 test for test/Bitboard.t.sol:CastlingRightsTest\n[PASS] test_aCapturedRookTakesItsCastlingRight() (gas: 1061608)\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 8.06ms (7.56ms CPU time)\n\nRan 8 tests for test/Strength.t.sol:StrengthTest\n[PASS] testFuzz_boundedAndMonotonic(uint256,uint256,uint256) (runs: 256, μ: 9070, ~: 8663)\nLogs:\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n\n[PASS] testFuzz_depthMonotonic(uint256,uint256,uint256) (runs: 256, μ: 12038, ~: 12286)\nLogs:\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n  Bound result 115644421685197971522869462907937010200508354879680807440893294345848363048539\n\n[PASS] testFuzz_shiftKeepsTheShare(uint256,uint256,uint8) (runs: 256, μ: 14688, ~: 15266)\nLogs:\n  Bound result 3\n  Bound result 52752653068975355376030217583542378117474934304014420\n  Bound result 147667552118223900701522100750897652761629785959763509433848603812854533320\n\n[PASS] testFuzz_tenfoldIsAboutThirtyPoints(uint128,uint128) (runs: 256, μ: 13875, ~: 13724)\nLogs:\n  Bound result 350171818\n  Bound result 104158\n\n[PASS] testFuzz_unscalablePaidFollowsTheCurve(uint256,uint256) (runs: 256, μ: 13967, ~: 14208)\nLogs:\n  Bound result 115790931319495836852673940367340785359654322087626273952269823226806994004177\n  Bound result 115791782035857089704464134789627507020986732701801690007265759875169087701554\n\n[PASS] test_decidedPoints() (gas: 15577)\n[PASS] test_hugePaymentsDoNotRevert() (gas: 12854)\n[PASS] test_zeroInputs() (gas: 4493)\nSuite result: ok. 8 passed; 0 failed; 0 skipped; finished in 86.32ms (123.88ms CPU time)\n\nRan 1 test for test/BitboardGas.t.sol:BitboardGasTest\n[PASS] test_costs() (gas: 48463243)\nLogs:\n  legal moves (bitboards): 47559\n  legal moves + check + mate tests (bitboards): 95436\n  attack count maps, both sides: 70123\n  mate in one search: 41625\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 98.55ms (98.19ms CPU time)\n\nRan 5 tests for test/EngineV5Passers.t.sol:EngineV5PassersTest\n[PASS] test_mateGuardIsMirrorSymmetric() (gas: 295575)\n[PASS] test_rookAndBishopEnding() (gas: 39198940)\n[PASS] test_rookCanBlockOnFirstRank() (gas: 28797711)\n[PASS] test_rookEndingPawnOnSeventh() (gas: 29299240)\n[PASS] test_unstoppablePawnIsSoldDearly() (gas: 9541555)\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 115.76ms (311.35ms CPU time)\n\nRan 1 test for test/V5Profile.t.sol:V5ProfileTest\n[PASS] test_stages() (gas: 414889648)\nLogs:\n  positions: 216\n  context: 32041\n  context + legal moves: 72292\n  context + legal + cheap pass: 219278\n  context + legal + one exact re-score: 101720\n  full choice at 50%: 238222\n  per position: loop only: 85094\n  per position: gain: 21278\n  per position: check test: 18802\n  per position: zone pressure: 15007\n  per position: threat: 10339\n  per position: noise: 6841\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 819.66ms (819.38ms CPU time)\n\nRan 6 tests for test/EngineV5Conversion.t.sol:EngineV5ConversionTest\n[PASS] test_bareKingConversion() (gas: 11570132)\nLogs:\n  cases: 4\n  average half-moves to mate: 13\n  converting side: gas avg: 253288\n  converting side: gas max: 338081\n\n[PASS] test_conversionRegressionAndBlackSymmetry() (gas: 96364887)\nLogs:\n  cases: 32\n  average half-moves to mate: 14\n  converting side: gas avg: 238250\n  converting side: gas max: 441033\n\n[PASS] test_conversionSweep() (gas: 1068246146)\nLogs:\n  converted within 40 half-moves: 320 of 320\n  cases: 320\n  average half-moves to mate: 15\n  converting side: gas avg: 241240\n  converting side: gas max: 441041\n\n[PASS] test_generatedConversionValidation() (gas: 862755763)\nLogs:\n  generated corpus: mates within 40 of 256: 256\n  generated corpus: mates within 60 of 256: 256\n  cases: 256\n  average half-moves to mate: 15\n  converting side: gas avg: 243056\n  converting side: gas max: 487111\n\n[PASS] test_queenDoesNotTrapItsKingOnBackRank() (gas: 4208529)\n[PASS] test_rookKingApproachesDiagonallyInsteadOfRetreating() (gas: 2010158)\nSuite result: ok. 6 passed; 0 failed; 0 skipped; finished in 2.54s (5.21s CPU time)\n\nRan 3 tests for test/EngineV5.t.sol:EngineV5Test\n[PASS] test_legalChoicesMatesAndGas() (gas: 5676065535)\nLogs:\n  positions: 3968\n  mates in one taken at full accuracy: 8\n  average gas per choice: 237069\n  max gas per choice: 730409\n  runtime bytes: 23220\n\n[PASS] test_mateFoundAfterSixChecks() (gas: 6352002)\nLogs:\n  mates at the hook's cap, of 16 seeds: 15\n\n[PASS] test_noStalemateOfAWonGame() (gas: 2563175)\nSuite result: ok. 3 passed; 0 failed; 0 skipped; finished in 6.13s (6.15s CPU time)\n\nRan 1 test for test/Endings.t.sol:EndingsTest\n[PASS] test_statusAgainstChessJs() (gas: 4028909217)\nLogs:\n  games: 200\n  positions: 29637\n  checkmates: 158\n  stalemates: 17\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 7.76s (7.76s CPU time)\n\nRan 5 tests for test/RulesRandom.t.sol:RulesRandomTest\n[PASS] test_randomGamesAgainstChessJs_000_049() (gas: 2533171524)\nLogs:\n  positions compared: 6445\n\n[PASS] test_randomGamesAgainstChessJs_050_099() (gas: 2544450961)\nLogs:\n  positions compared: 6354\n\n[PASS] test_randomGamesAgainstChessJs_100_149() (gas: 2152678912)\nLogs:\n  positions compared: 5727\n\n[PASS] test_randomGamesAgainstChessJs_150_199() (gas: 2261826741)\nLogs:\n  positions compared: 5795\n\n[PASS] test_randomGamesAgainstChessJs_200_249() (gas: 2109099273)\nLogs:\n  positions compared: 5507\n\nSuite result: ok. 5 passed; 0 failed; 0 skipped; finished in 8.52s (27.64s CPU time)\n\nRan 1 test for test/EngineV5Games.t.sol:EngineV5GamesTest\n[PASS] test_selfPlay() (gas: 6846496724)\nLogs:\n  game 0 result 2: \n  game 1 result 1: \n  game 2 result 1: \n  gave rook/queen: 86870238674660599699401622711778689468087322501069979287361930582906697548292 460031 943668479 w 861 net -600 best 0\n  gave rook/queen: 5880067409023361893519492475378704098026425233886153209393628296587572674560 2156332799 3099539711 w 3376 net -500 best 0\n  gave rook/queen: 6332454073938958339691435558333129996404503485053911374062329293274290847744 2156335103 3099541247 w 2933 net -500 best 0\n  gave rook/queen: 395847936290169010519308284464677771096028646544612309052648037262299234304 2156335103 3099540991 w 1758 net -500 best 0\n  gave rook/queen: 5735268393226817914588476328015805100616831101603081661062223767787525898816 2156332799 3099540735 b 3956 net -500 best 0\n  gave rook/queen: 397098877808941878081562480997554670823473734272162587586440933204236959744 2156332799 3099540991 b 3966 net -500 best 0\n  gave rook/queen: 1615332164509958130566762150542858943568099321520896366659842039781277696 2156332799 3099540479 b 1814 net -500 best 0\n  gave rook/queen: 6673050404315007858229191350730340348849575803261007268550295068225560379392 2156332543 3099541247 b 3779 net -900 best 0\n  gave rook/queen: 478904856520590268320060195734393159948566038575054852 2156333055 3099529983 b 1310 net -500 best 0\n  games: 40\n  White mates: 16\n  Black mates: 21\n  stalemate: 1\n  too little material: 1\n  repetition: 0\n  quiet half-move limit: 0\n  half-move cap: 1\n  average half-moves per game: 102\n  checks per game (x10): 112\n  captures per game (x10): 187\n  undo moves per game (x10): 35\n  longest quiet stretch, average per game: 10\n  games with a quiet stretch of 30+: 0\n  games fingerprint: 0x981b82e1bf158d419277460ddb6e6a0d0752eff0e917358268d810c9f60e142a\n  comebacks (behind 3+ pawns at half-move 40, then won): 3 of 14\n  effort < 40%: 714 moves, gas avg 200799 max 600110; mates in one taken 5/6; walked into an avoidable mate 5; gave a piece 10, a rook or queen 2\n  effort 40-70%: 2122 moves, gas avg 213426 max 690390; mates in one taken 25/25; walked into an avoidable mate 10; gave a piece 28, a rook or queen 6\n  effort 70%+: 1265 moves, gas avg 233650 max 659457; mates in one taken 7/8; walked into an avoidable mate 6; gave a piece 8, a rook or queen 3\n\nSuite result: ok. 1 passed; 0 failed; 0 skipped; finished in 17.50s (17.50s CPU time)\n\nRan 2 tests for test/Bitboard.t.sol:BitboardTest\n[PASS] test_againstChessJs() (gas: 93065314807)\nLogs:\n  positions: 2689\n  moves applied and compared: 72742\n  positions with a mate in one: 38\n\n[PASS] test_lsb() (gas: 423636)\nSuite result: ok. 2 passed; 0 failed; 0 skipped; finished in 33.66s (33.60s CPU time)\n\nRan 11 test suites in 33.66s (77.22s CPU time): 34 tests passed, 0 failed, 0 skipped (34 total tests)\n","passed":true},{"durationMs":53,"exitCode":0,"name":"source-index","output":"{\"v\":1,\"entryPoints\":[],\"files\":{\".gitignore\":3,\"ADAPTATION.md\":122,\"LICENSE\":16,\"foundry.toml\":29,\"launch.json\":10,\"src/Bitboard.sol\":719,\"src/Chess.sol\":34,\"src/ChessEngineV5.sol\":824,\"src/IChessEngine.sol\":29,\"src/Rules.sol\":45,\"src/Strength.sol\":47,\"test/Bitboard.t.sol\":158,\"test/BitboardGas.t.sol\":73,\"test/Chessboard.sol\":74,\"test/Endings.t.sol\":68,\"test/EngineV5.t.sol\":95,\"test/EngineV5Conversion.t.sol\":172,\"test/EngineV5Games.t.sol\":282,\"test/EngineV5Passers.t.sol\":147,\"test/RulesRandom.t.sol\":120,\"test/Strength.t.sol\":85,\"test/V5Profile.t.sol\":115,\"test/data/chess.json\":1,\"test/data/conversion-validation.json\":770,\"test/data/conversion.json\":98,\"test/data/endings.json\":1,\"test/data/legal.json\":1,\"test/data/random.json\":1},\"excluded\":[\"lib/\",\"node_modules/\"],\"truncated\":false}","passed":true}],"detail":"all checks passed","evaluation":"checks","profile":"foundry","status":"accepted","submissionHash":"c6a5be5f20013f853443a9f532930bdf04d66235c3bd92567b38c18d5a837deb","verifiedTreeHash":"ca883e6da74e4db4a3785fe3d1de1a3d24d78fdb","verifierVersion":"0.1.0+d372f99e"}]}