| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: bmc4
Date: Sun Jan 31 10:04:41 2021 +0100 Timestamp: 1612083881 Speed Up Perft Search It speeds up generate<LEGAL>, and thus perft, roughly by 2-3%. closes https://github.com/official-stockfish/Stockfish/pull/3312 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: bmc4
Date: Sun Jan 31 10:02:10 2021 +0100 Timestamp: 1612083730 Clean Up Castling in gives_check There is no need to add rto or kto on the Bitboard which represents the pieces. STC: LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 57064 W: 5096 L: 5067 D: 46901 Elo +0.18 Ptnml(0-2): 202, 3862, 20355, 3931, 182 https://tests.stockfishchess.org/tests/view/6005ea2c6019e097de3efa55 LTC: LLR: 2.92 (-2.94,2.94) {-0.75,0.25} Total: 30088 W: 1094 L: 1052 D: 27942 Elo +0.48 Ptnml(0-2): 10, 882, 13217, 926, 9 https://tests.stockfishchess.org/tests/view/6006115a6019e097de3efa6e closes https://github.com/official-stockfish/Stockfish/pull/3311 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: bmc4
Date: Sun Jan 31 10:00:17 2021 +0100 Timestamp: 1612083617 Avoid more expensive legality check speedup of the code, enough to pass STC, failed LTC. Passed STC: LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 68928 W: 6334 L: 6122 D: 56472 Elo +1.07 Ptnml(0-2): 233, 4701, 24369, 4943, 218 https://tests.stockfishchess.org/tests/view/6002747f6019e097de3ef8dc Failed LTC: LLR: -2.96 (-2.94,2.94) {0.25,1.25} Total: 44560 W: 1702 L: 1675 D: 41183 Elo +0.21 Ptnml(0-2): 25, 1383, 19438, 1408, 26 https://tests.stockfishchess.org/tests/view/6002a4836019e097de3ef8e3 About 1% speedup: Result of 50 runs ================== base (...kfish.master) = 2237500 +/- 7428 test (...ckfish.patch) = 2267003 +/- 7017 diff = +29503 +/- 4774 speedup = +0.0132 P(speedup > 0) = 1.0000 closes https://github.com/official-stockfish/Stockfish/pull/3304 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Lolligerhans
Date: Sat Jan 30 13:27:31 2021 +0100 Timestamp: 1612009651 Small cleanups closes https://github.com/official-stockfish/Stockfish/pull/3301 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stéphane Nicolet
Date: Sat Jan 30 13:20:56 2021 +0100 Timestamp: 1612009256 Improve play for closed positions This patch give a small bonus to incite the attacking side to keep more pawns on the board. A consequence of this bonus is that Stockfish will tend to play positions slightly more closed on average than master, especially when it believes that it has an advantage. To lower the risk of blockades where Stockfish start shuffling without progress, we also implement a progressive decrease of the evaluation value with the 50 moves counter (along with the necessary aging of the transposition table to reduce the impact of the Graph History Interaction problem): since the evaluation decreases during shuffling phases, the engine will tend to examine the consequences of pawn breaks faster during the search. Passed STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 26184 W: 2406 L: 2252 D: 21526 Elo +2.04 Ptnml(0-2): 85, 1784, 9223, 1892, 108 https://tests.stockfishchess.org/tests/view/600cc08b735dd7f0f0352c06 Passed LCT: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 199768 W: 7695 L: 7191 D: 184882 Elo +0.88 Ptnml(0-2): 85, 6478, 86269, 6952, 100 https://tests.stockfishchess.org/tests/view/600ccd28735dd7f0f0352c10 Closes https://github.com/official-stockfish/Stockfish/pull/3321 Bench: 3988915 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Rod Johnson
Date: Sat Jan 30 13:19:20 2021 +0100 Timestamp: 1612009160 Add .gitignore add files produced during the build to a newly added .gitignore closes https://github.com/official-stockfish/Stockfish/pull/3286 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Krystian Kuzniarek
Date: Sat Jan 30 12:57:27 2021 +0100 Timestamp: 1612007847 Change lock type No additional features of std::unique_lock has been previously used so it's better to use a lighter lock. closes https://github.com/official-stockfish/Stockfish/pull/3284 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Lolligerhans
Date: Sun Jan 17 09:35:59 2021 +0100 Timestamp: 1610872559 Add penalty for doubled pawns in agile structure Give an additional penalty of S(20, 10) for any doubled pawn if none of the opponent's pawns is facing any of our - pawns or - pawn attacks; that means, each of their pawns can push at least one square without being captured. This ignores their non-pawns pieces and attacks. One possible justification: Their pawns' ability to push freely provides options to react to our threats by changing their pawn structure. Our doubled pawns however will likely lead to an exploitable weakness, even if the pawn structure is not yet fixed. Note that the notion of "their pawns not being fixed" is symmetric for both players: If all of their pawns can push freely so can ours. All pawns being freely pushable might just be an early-game-indicator. However, it can trigger during endgame pawns races, where doubled pawns are especially hindering, too. LTC LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 134976 W: 17964 L: 17415 D: 99597 Elo +1.41 Ptnml(0-2): 998, 12702, 39619, 13091, 1078 https://tests.stockfishchess.org/tests/view/5ffdd5316019e097de3ef281 STC LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 35640 W: 7219 L: 6904 D: 21517 Elo +3.07 Ptnml(0-2): 645, 4096, 8084, 4289, 706 https://tests.stockfishchess.org/tests/view/5ffda4a16019e097de3ef265 closes https://github.com/official-stockfish/Stockfish/pull/3302 Bench: 4363873 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Tomasz Sobczyk
Date: Wed Jan 13 22:59:54 2021 +0100 Timestamp: 1610575194 Optimize generate_moves This change simplifies control flow in the generate_moves function which ensures the compiler doesn't duplicate work due to possibly not resolving pureness of the function calls. Also the biggest change is the removal of the unnecessary condition checking for empty b in a convoluted way. The rationale for removal of this condition is that computing attacks_bb with occupancy is not much more costly than computing pseudo attacks and overall the condition (also being likely unpredictable) is a pessimisation. This is inspired by previous changes by @BM123499. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 88040 W: 8172 L: 7931 D: 71937 Elo +0.95 Ptnml(0-2): 285, 6128, 30957, 6361, 289 https://tests.stockfishchess.org/tests/view/5ffc28386019e097de3ef1c7 closes https://github.com/official-stockfish/Stockfish/pull/3300 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 Windows 32 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 Jan 11 19:42:31 2021 +0100 Timestamp: 1610390551 Bad Outpost Pawn Scale Changed name from Bad Outpost to Uncontested Outpost Scale Uncontested Outpost with number of pawns + Decrease Bishop PSQT values and general tuning Credits for the decrease of the Bishop PSQT values: Fauzi Credits for scaling Uncontested Outpost with number of pawns: Lolligerhans Credits for the tunings: Fauzi Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 32040 W: 6593 L: 6281 D: 19166 Elo +3.38 Ptnml(0-2): 596, 3713, 7095, 4015, 601 https://tests.stockfishchess.org/tests/view/5ffa43026019e097de3ef0f2 Passed LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 84376 W: 11395 L: 10950 D: 62031 Elo +1.83 Ptnml(0-2): 652, 7930, 24623, 8287, 696 https://tests.stockfishchess.org/tests/view/5ffa6e7b6019e097de3ef0fd closes https://github.com/official-stockfish/Stockfish/pull/3296 Bench: 4287509 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Vizvezdenec
Date: Mon Jan 11 19:36:07 2021 +0100 Timestamp: 1610390167 Refine stat based reductions This patch separates stat based reductions for quiet moves in case of being in check and in case of not being in check. We will be using sum of first continuation history and main history (similar to movepicker) instead of statScore for the first case. passed STC https://tests.stockfishchess.org/tests/view/5ff87b2f6019e097de3ef09b LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 63992 W: 5887 L: 5678 D: 52427 Elo +1.13 Ptnml(0-2): 201, 4561, 22305, 4686, 243 passed LTC https://tests.stockfishchess.org/tests/view/5ff8b6206019e097de3ef0b2 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 81216 W: 3127 L: 2880 D: 75209 Elo +1.06 Ptnml(0-2): 46, 2544, 35176, 2801, 41 closes https://github.com/official-stockfish/Stockfish/pull/3293 bench 4395984 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: BM123499
Date: Mon Jan 11 19:31:22 2021 +0100 Timestamp: 1610389882 Rethink En Passant Evasion Capture It now checks if it were a discovery attack instead of the attacking piece is the double-moved pawn. As a side effect, certain illegal fens have different, and slightly more logical move generation. There is no intend to maintain particular behavior for such non-reachable fens. Passed STC: LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 47912 W: 4327 L: 4285 D: 39300 Elo +0.30 Ptnml(0-2): 144, 3312, 17012, 3334, 154 https://tests.stockfishchess.org/tests/view/5ff890946019e097de3ef0a5 closes https://github.com/official-stockfish/Stockfish/pull/3292 closes / fixes https://github.com/official-stockfish/Stockfish/issues/3270 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Dieter Dobbelaere
Date: Mon Jan 11 19:23:05 2021 +0100 Timestamp: 1610389385 Fix static_assert. With a hard-coded true, this declaration has no effect. closes https://github.com/official-stockfish/Stockfish/pull/3295 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Dieter Dobbelaere
Date: Mon Jan 11 19:19:39 2021 +0100 Timestamp: 1610389179 Use correct chess terms + fix spelling. - "discovered check" (instead of "discovery check") - "en passant" (instead of "en-passant") - "pseudo-legal" before a noun (instead of "pseudo legal") - "3-fold" (instead of "3fold") closes https://github.com/official-stockfish/Stockfish/pull/3294 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Vizvezdenec
Date: Mon Jan 11 19:17:03 2021 +0100 Timestamp: 1610389023 Small code cleanup in LMR In a recent patch we added comparing capture history to a number for LMR of captures. Calling it via thisThread-> is not needed since capture history was already declared by this time - so removing makes code slightly shorter and easier to follow. closes https://github.com/official-stockfish/Stockfish/pull/3297 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: MaximMolchanov
Date: Mon Jan 11 18:54:18 2021 +0100 Timestamp: 1610387658 Affine transform robust implementation Size of the weights in the last layer is less than 512 bits. It leads to wrong data access for AVX512. There is no error because in current implementation it is guaranteed that there is an array of zeros after weights so zero multiplied by something is returned and sum is correct. It is a mistake that can lead to unexpected bugs in the future. Used AVX2 instructions for smaller input size. No measurable slowdown on avx512. closes https://github.com/official-stockfish/Stockfish/pull/3298 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: bmc4
Date: Mon Jan 11 18:41:47 2021 +0100 Timestamp: 1610386907 Remove Condition from Generate_Move Loop it seems it's faster to handle blockers_for_king(~Us) outside loops Passed STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 22184 W: 2063 L: 1919 D: 18202 Elo +2.26 Ptnml(0-2): 63, 1485, 7855, 1623, 66 https://tests.stockfishchess.org/tests/view/5ffbee2f6019e097de3ef18d closes https://github.com/official-stockfish/Stockfish/pull/3299 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 Windows 32 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: Fri Jan 8 17:04:23 2021 +0100 Timestamp: 1610121863 Update copyright years 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Vizvezdenec
Date: Fri Jan 8 16:57:26 2021 +0100 Timestamp: 1610121446 Reorder conditions in LMR and pruning Make code logic somewhat easier to follow. closes https://github.com/official-stockfish/Stockfish/pull/3285 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: MaximMolchanov
Date: Fri Jan 8 16:35:44 2021 +0100 Timestamp: 1610120144 Affine transform refactoring. Reordered weights in such a way that accumulated sum fits to output. Weights are grouped in blocks of four elements because four int8 (weight type) corresponds to one int32 (output type). No horizontal additions. Grouped AVX512, AVX2 and SSSE3 implementations. Repeated code was removed. An earlier version passed STC: LLR: 2.97 (-2.94,2.94) {-0.25,1.25} Total: 15336 W: 1495 L: 1355 D: 12486 Elo +3.17 Ptnml(0-2): 44, 1054, 5350, 1158, 62 https://tests.stockfishchess.org/tests/view/5ff60e106019e097de3eefd5 Speedup depends on the architecture, up to 4% measured on a NNUE only bench. closes https://github.com/official-stockfish/Stockfish/pull/3287 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 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Thu Dec 31 18:03:33 2020 +0100 Timestamp: 1609434213 WeakUnopposed penalty for backwards on file A or H Do not give the WeakUnopposed penalty for backwards on file A or H The original idea comes from Lolligerhans, and a series of tunings and tests done by Fauzi. Passed STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 140864 W: 28127 L: 27660 D: 85077 Elo +1.15 Ptnml(0-2): 2529, 16660, 31735, 16831, 2677 https://tests.stockfishchess.org/tests/view/5fe39dec3932f79192d39673 Passed LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 67568 W: 8993 L: 8590 D: 49985 Elo +2.07 Ptnml(0-2): 523, 6176, 19983, 6579, 523 https://tests.stockfishchess.org/tests/view/5fe3dd1b3932f79192d39693 closes https://github.com/official-stockfish/Stockfish/pull/3275 Bench: 4109336 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Unai Corzo
Date: Thu Dec 31 17:51:14 2020 +0100 Timestamp: 1609433474 Remove razoring has become ineffective now. STC https://tests.stockfishchess.org/tests/view/5fe653403932f79192d3981a LLR: 2.95 (-2.94,2.94) {-1.25,0.25} Total: 63448 W: 5965 L: 5934 D: 51549 Elo +0.17 Ptnml(0-2): 230, 4738, 21769, 4745, 242 LTC https://tests.stockfishchess.org/tests/view/5fe6f0f03932f79192d39856 LLR: 2.93 (-2.94,2.94) {-0.75,0.25} Total: 65368 W: 2485 L: 2459 D: 60424 Elo +0.14 Ptnml(0-2): 33, 2186, 28230, 2192, 43 closes https://github.com/official-stockfish/Stockfish/pull/3278 bench: 4493379 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Unai Corzo
Date: Thu Dec 31 17:48:47 2020 +0100 Timestamp: 1609433327 Simplify away late irreversible move extension Late irreversible move extension seems to be useless now. STC https://tests.stockfishchess.org/tests/view/5fe75c5c3932f79192d398ca LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 196192 W: 18111 L: 18278 D: 159803 Elo -0.30 Ptnml(0-2): 681, 14097, 68652, 14040, 626 LTC https://tests.stockfishchess.org/tests/view/5fe875e23932f79192d39952 LLR: 2.96 (-2.94,2.94) {-0.75,0.25} Total: 28080 W: 1105 L: 1053 D: 25922 Elo +0.64 Ptnml(0-2): 13, 904, 12158, 948, 17 closes https://github.com/official-stockfish/Stockfish/pull/3279 bench: 4144640 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Unai Corzo
Date: Thu Dec 31 17:44:15 2020 +0100 Timestamp: 1609433055 Assorted parameter tweak Parameter tweak from various tunes and patches. STC https://tests.stockfishchess.org/tests/view/5fec2ae36019e097de3ee94a LLR: 2.97 (-2.94,2.94) {-0.25,1.25} Total: 41976 W: 4032 L: 3848 D: 34096 Elo +1.52 Ptnml(0-2): 147, 3086, 14341, 3264, 150 LTC https://tests.stockfishchess.org/tests/view/5fec5c3c6019e097de3ee973 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 23936 W: 970 L: 844 D: 22122 Elo +1.83 Ptnml(0-2): 14, 749, 10319, 869, 17 closes https://github.com/official-stockfish/Stockfish/pull/3281 bench: 4354546 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stefan Geschwentner
Date: Thu Dec 31 17:41:34 2020 +0100 Timestamp: 1609432894 Tweak capture LMR. Apply the recently added LMR condition for captures at nodes which are not PV or former PV nodes only if capture history is not too good. STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 95296 W: 8917 L: 8660 D: 77719 Elo +0.94 Ptnml(0-2): 323, 6871, 33045, 7044, 365 https://tests.stockfishchess.org/tests/view/5feca7f46019e097de3ee9ae LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 29216 W: 1172 L: 1034 D: 27010 Elo +1.64 Ptnml(0-2): 11, 946, 12568, 1060, 23 https://tests.stockfishchess.org/tests/view/5fecf1786019e097de3ee9d5 closes https://github.com/official-stockfish/Stockfish/pull/3283 Bench: 4006138 see source |