| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Jost Triller
Date: Sat Aug 9 09:08:38 2025 +0200 Timestamp: 1754723318 Adjust probcut on staticEval Reducing probcut depth more when staticEval is very good and less if staticEval is not so good compared to beta STC: https://tests.stockfishchess.org/tests/view/68926bf6690844f940fa1350 LLR: 2.98 (-2.94,2.94) <0.00,2.00> Total: 174400 W: 45698 L: 45174 D: 83528 Elo +1.04 Ptnml(0-2): 622, 20356, 44672, 20976, 574 LTC: https://tests.stockfishchess.org/tests/view/689651b4f8a258623dda6531 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 56010 W: 14547 L: 14191 D: 27272 Elo +2.21 Ptnml(0-2): 31, 5929, 15738, 6267, 40 This patch was generated using qwen3-235b-a22b-thinking-2507: Prompt: https://rentry.co/bm6vriai Thinking: https://rentry.co/34km4zf8 Final respone: https://rentry.co/rauotrvr closes https://github.com/official-stockfish/Stockfish/pull/6219 Bench: 3629755 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sat Aug 9 09:04:33 2025 +0200 Timestamp: 1754723073 Remove outdated comment Remove the Elo worth, as they are now completely outdated, making them irrelevant and potentially misleading Continuation of #5810 as these comments in "history.h" were missed. closes https://github.com/official-stockfish/Stockfish/pull/6216 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Sat Aug 9 08:54:47 2025 +0200 Timestamp: 1754722487 Remove an instruction from find_nnz() closes https://github.com/official-stockfish/Stockfish/pull/6212 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Niklas Fiekas
Date: Sat Aug 9 08:51:45 2025 +0200 Timestamp: 1754722305 Build x86-64-avx512icl in CI closes https://github.com/official-stockfish/Stockfish/pull/6217 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stockfisher69
Date: Sat Aug 9 08:49:12 2025 +0200 Timestamp: 1754722152 Simplification: Futility pruning for captures tested in final form as simplication passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 113682 W: 29199 L: 29074 D: 55409 Elo +0.38 Ptnml(0-2): 68, 12359, 31859, 12490, 65 https://tests.stockfishchess.org/tests/view/688e85a17d68fe4f7f130e24 earlier test, equivalent: passed STC: LLR: 2.96 (-2.94,2.94) <0.00,2.00> Total: 120224 W: 31621 L: 31176 D: 57427 Elo +1.29 Ptnml(0-2): 415, 14167, 30567, 14484, 479 https://tests.stockfishchess.org/tests/view/68888bdd7b562f5f7b732643 closes https://github.com/official-stockfish/Stockfish/pull/6209 Bench: 2661621 see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: KazApps
Date: Sat Aug 9 08:43:49 2025 +0200 Timestamp: 1754721829 Separate bonus/malus parameters for quiet and capture moves Parameters were tuned on 60k STC games. Passed STC LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 16928 W: 4570 L: 4277 D: 8081 Elo +6.01 Ptnml(0-2): 57, 1905, 4270, 2152, 80 https://tests.stockfishchess.org/tests/view/688b4486502b34dd5e711122 Passed LTC LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 43602 W: 11373 L: 11041 D: 21188 Elo +2.65 Ptnml(0-2): 23, 4657, 12116, 4975, 30 https://tests.stockfishchess.org/tests/view/688c0eb5502b34dd5e71124b Passed non-regression VLTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 181016 W: 46335 L: 46281 D: 88400 Elo +0.10 Ptnml(0-2): 33, 18177, 54034, 18231, 33 https://tests.stockfishchess.org/tests/view/688e0a77f17748b4d23c822b closes https://github.com/official-stockfish/Stockfish/pull/6200 bench: 3435529 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: rn5f107s2
Date: Mon Aug 4 15:16:21 2025 +0200 Timestamp: 1754313381 Only set ep square if ep capture is possible for positions such as: position fen rr6/2q2p1k/2P1b1pp/bB2P1n1/R2B2PN/p4P1P/P1Q4K/1R6 b - - 2 38 moves f7f5 position fen 8/p2r1pK1/6p1/1kp1P1P1/2p5/2P5/8/4R3 b - - 0 43 moves f7f5 position fen 4k3/4p3/2b3b1/3P1P2/4K3/8/8/8 b - - moves e7e5 ep is not possible for various reasons. Do not set the ep square and the do not change the zobrist key, as if ep were possible. This fixes 3-fold detection, which could in rare cases be observed as a warning generated by fastchess for PVs that continued beyond an actual 3-fold. Also fixes wrong evals for certain moves e.g. a2a1 for position fen 4k3/1b2p2b/8/3P1P2/4K3/8/8/r7 b - - 0 1 moves e7e5 e4e3 a1a2 e3e4 a2a1 e4f3 a1a2 f3e4 fixes https://github.com/official-stockfish/Stockfish/issues/6138 originally written and tested by rn5f107s2, with small buglet as https://tests.stockfishchess.org/tests/view/685af90843ce022d15794400 failed STC LLR: -2.93 (-2.94,2.94) <-1.75,0.25> Total: 130688 W: 33986 L: 34362 D: 62340 Elo -1.00 Ptnml(0-2): 414, 13292, 38302, 12928, 408 https://tests.stockfishchess.org/tests/view/688bcb35502b34dd5e7111c9 passed LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 99018 W: 25402 L: 25273 D: 48343 Elo +0.45 Ptnml(0-2): 54, 9097, 31089, 9204, 65 https://tests.stockfishchess.org/tests/view/688c613c502b34dd5e7112d3 https://github.com/official-stockfish/Stockfish/pull/6211 Bench: 2946135 Co-authored-by: Joost VandeVondele <> see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Jost Triller
Date: Mon Aug 4 15:12:55 2025 +0200 Timestamp: 1754313175 Depth dependent reduction threshold when full-depth re-search STC: https://tests.stockfishchess.org/tests/view/68894d577b562f5f7b73273b LLR: 2.98 (-2.94,2.94) <0.00,2.00> Total: 155072 W: 40651 L: 40150 D: 74271 Elo +1.12 Ptnml(0-2): 609, 18271, 39292, 18738, 626 LTC: https://tests.stockfishchess.org/tests/view/688c2705502b34dd5e71127a LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 321012 W: 82891 L: 81995 D: 156126 Elo +0.97 Ptnml(0-2): 227, 34421, 90285, 35375, 198 This commit was generated using qwen3-235b-a22b-thinking-2507: Prompt: https://rentry.co/iqtaoht7 Reasoning/thinking: https://rentry.co/wm6t9hye closes https://github.com/official-stockfish/Stockfish/pull/6210 Bench: 2983938 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Mon Aug 4 15:07:37 2025 +0200 Timestamp: 1754312857 Simplify key after Passed Non-regression STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 534016 W: 139438 L: 139771 D: 254807 Elo -0.22 Ptnml(0-2): 2098, 63469, 136136, 63278, 2027 https://tests.stockfishchess.org/tests/view/688ac64d502b34dd5e7110a4 Passed Non-regression LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 43980 W: 11346 L: 11149 D: 21485 Elo +1.56 Ptnml(0-2): 31, 4689, 12353, 4886, 31 https://tests.stockfishchess.org/tests/view/688ea8a47d68fe4f7f130eb3 closes https://github.com/official-stockfish/Stockfish/pull/6207 Bench: 2884232 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Michael Chaly
Date: Mon Aug 4 14:58:59 2025 +0200 Timestamp: 1754312339 Reintroduce reduction term in LMR for cutnodes This term increases reduction for cutnodes without tt move, term was simplified away recently. Passed STC: https://tests.stockfishchess.org/tests/view/688882007b562f5f7b73262f LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 187616 W: 49367 L: 48824 D: 89425 Elo +1.01 Ptnml(0-2): 710, 21898, 48034, 22471, 695 Passed LTC: https://tests.stockfishchess.org/tests/view/688c71f4502b34dd5e71139a LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 140280 W: 36280 L: 35750 D: 68250 Elo +1.31 Ptnml(0-2): 79, 15175, 39121, 15667, 98 closes https://github.com/official-stockfish/Stockfish/pull/6206 Bench: 2996732 see source |
| Windows x64 for Haswell CPUs Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Mon Aug 4 14:56:03 2025 +0200 Timestamp: 1754312163 Refactor: Simplify pawn structure indexing Refactoring the mechanism for calculating pawn structure hash indices and make it consistent with the rest. closes https://github.com/official-stockfish/Stockfish/pull/6205 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Mon Aug 4 14:53:49 2025 +0200 Timestamp: 1754312029 Fix icx profile-build fixes the issue pointed out in https://github.com/official-stockfish/Stockfish/pull/6202 closes https://github.com/official-stockfish/Stockfish/pull/6203 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sat Aug 2 16:25:31 2025 +0200 Timestamp: 1754144731 Add "d < newDepth" condition for doDeeperSearch Add "d < newDepth" condition for doDeeperSearch Passed STC: LLR: 2.97 (-2.94,2.94) <0.00,2.00> Total: 66144 W: 17512 L: 17148 D: 31484 Elo +1.91 Ptnml(0-2): 220, 7726, 16833, 8056, 237 https://tests.stockfishchess.org/tests/view/6887cce67b562f5f7b731a79 Passed LTC: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 411240 W: 106103 L: 105023 D: 200114 Elo +0.91 Ptnml(0-2): 256, 44249, 115566, 45257, 292 https://tests.stockfishchess.org/tests/view/6887ec527b562f5f7b731c37 closes https://github.com/official-stockfish/Stockfish/pull/6204 Bench: 2917036 see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sat Aug 2 16:21:41 2025 +0200 Timestamp: 1754144501 Remove code that is not used anywhere closes https://github.com/official-stockfish/Stockfish/pull/6201 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Sat Aug 2 16:18:46 2025 +0200 Timestamp: 1754144326 Simplify improving term Set improving whenever ss->staticEval >= beta Passed simplification STC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 38016 W: 10122 L: 9900 D: 17994 Elo +2.03 Ptnml(0-2): 143, 4388, 9747, 4564, 166 https://tests.stockfishchess.org/tests/view/688803917b562f5f7b7322eb Passed simplification LTC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 21648 W: 5594 L: 5375 D: 10679 Elo +3.51 Ptnml(0-2): 12, 2241, 6096, 2466, 9 https://tests.stockfishchess.org/tests/view/688820397b562f5f7b73235d closes https://github.com/official-stockfish/Stockfish/pull/6198 Bench: 3576884 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: CSTENTOR
Date: Sat Aug 2 16:12:12 2025 +0200 Timestamp: 1754143932 Make Resetting the Aspiration Window after FailLow more aggressive Sets beta=(3alpha+beta)/4 when failLow. Before it was beta=(alpha+beta)/2, even though in theory we should be getting an upper bound from a failLow, we can’t trust the score that caused the failLow. Therefore beta=alpha doesn’t work. I made the buffer between the new beta to the bestValue that caused the failLow smaller. passed STC: https://tests.stockfishchess.org/tests/view/688674947b562f5f7b7315b5 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 119616 W: 31253 L: 30818 D: 57545 Elo +1.26 Ptnml(0-2): 313, 14028, 30724, 14397, 346 passed LTC: https://tests.stockfishchess.org/tests/view/6887e0ad7b562f5f7b731afc LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 96978 W: 24905 L: 24466 D: 47607 Elo +1.57 Ptnml(0-2): 59, 10376, 27183, 10809, 62 closes https://github.com/official-stockfish/Stockfish/pull/6197 bench: 3085519 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: aronpetkovski
Date: Sat Aug 2 16:02:41 2025 +0200 Timestamp: 1754143361 Only do IIR in minimally reduced nodes Passed STC LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 164256 W: 42799 L: 42299 D: 79158 Elo +1.06 Ptnml(0-2): 451, 19305, 42087, 19863, 422 https://tests.stockfishchess.org/tests/view/68868e9b7b562f5f7b731615 Passed LTC LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 279396 W: 71871 L: 71062 D: 136463 Elo +1.01 Ptnml(0-2): 126, 30117, 78404, 30924, 127 https://tests.stockfishchess.org/tests/view/6886a4977b562f5f7b731663 closes https://github.com/official-stockfish/Stockfish/pull/6196 Bench: 3490609 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: J. Oster
Date: Sat Aug 2 15:54:10 2025 +0200 Timestamp: 1754142850 Display upper/lowerbound before wdl Bound info belongs directly to score info closes https://github.com/official-stockfish/Stockfish/pull/6195 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: MinetaS
Date: Sat Aug 2 15:52:24 2025 +0200 Timestamp: 1754142744 Increase CI timeouts for perft might fix CI failures on macOS instances closes https://github.com/official-stockfish/Stockfish/pull/6194 No functional change see source |
| Windows x64 for modern computers + AVX2 Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sat Aug 2 15:50:17 2025 +0200 Timestamp: 1754142617 Re-adding ttHit condition, but this time in the inner block Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 150240 W: 39305 L: 38819 D: 72116 Elo +1.12 Ptnml(0-2): 536, 17541, 38494, 17999, 550 https://tests.stockfishchess.org/tests/view/6887ce577b562f5f7b731a85 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 159120 W: 41025 L: 40461 D: 77634 Elo +1.23 Ptnml(0-2): 96, 16974, 44866, 17518, 106 https://tests.stockfishchess.org/tests/view/6887f0ba7b562f5f7b731c5d closes https://github.com/official-stockfish/Stockfish/pull/6193 bench: 3498926 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Sat Aug 2 15:49:35 2025 +0200 Timestamp: 1754142575 Optimize find_nnz() using VBMI2 about a 0.7% speedup for the x86-64-avx512icl ARCH closes https://github.com/official-stockfish/Stockfish/pull/6186 No functional change see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: aronpetkovski
Date: Mon Jul 28 20:18:55 2025 +0200 Timestamp: 1753726735 Simplify LMR extension limit formula This patch simplifies the maximum depth formula that reductions in LMR can allow. Passed STC LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 35616 W: 9358 L: 9139 D: 17119 Elo +2.14 Ptnml(0-2): 101, 4051, 9278, 4284, 94 https://tests.stockfishchess.org/tests/view/688608cf966ed85face24882 Passed LTC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 22284 W: 5833 L: 5613 D: 10838 Elo +3.43 Ptnml(0-2): 8, 2367, 6173, 2585, 9 https://tests.stockfishchess.org/tests/view/68860d7f966ed85face248d5 closes https://github.com/official-stockfish/Stockfish/pull/6191 Bench: 2902492 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Mon Jul 28 20:13:15 2025 +0200 Timestamp: 1753726395 Simplify extra continuation history updates Passed simplification STC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 254464 W: 65774 L: 65793 D: 122897 Elo -0.03 Ptnml(0-2): 699, 30087, 65638, 30150, 658 https://tests.stockfishchess.org/tests/view/68863283966ed85face24a59 Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 144750 W: 37111 L: 37018 D: 70621 Elo +0.22 Ptnml(0-2): 79, 15676, 40764, 15785, 71 https://tests.stockfishchess.org/tests/view/6886655f7b562f5f7b731359 closes https://github.com/official-stockfish/Stockfish/pull/6189 Bench: 3071078 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Styx
Date: Mon Jul 28 20:11:40 2025 +0200 Timestamp: 1753726300 Simplify NMP condition As this is tried only for cutNode, and all children of cutNodes will be nonCutNodes, the guard condition is redundant. Simplification just removes the unnecessary condition (always true). closes https://github.com/official-stockfish/Stockfish/pull/6187 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: 87
Date: Mon Jul 28 20:05:26 2025 +0200 Timestamp: 1753725926 Remove unnecessary deque allocation in perft closes https://github.com/official-stockfish/Stockfish/pull/6182 No functional change. see source |