| 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: Thu Mar 18 00:21:41 2021 +0100 Timestamp: 1616023301 Change definition of between_bb() We remark that in current master, most of our use cases for between_bb() can be optimized if the second parameter of the function is added to the segment. So we change the definition of between_bb(s1, s2) such that it excludes s1 but includes s2. We also use a precomputed array for between_bb() for another small speed gain (see https://tests.stockfishchess.org/tests/view/604d09f72433018de7a389fb). Passed STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 18736 W: 1746 L: 1607 D: 15383 Elo +2.58 Ptnml(0-2): 61, 1226, 6644, 1387, 50 https://tests.stockfishchess.org/tests/view/60428c84ddcba5f0627bb6e4 Yellow LTC: LTC: LLR: -3.00 (-2.94,2.94) {0.25,1.25} Total: 39144 W: 1431 L: 1413 D: 36300 Elo +0.16 Ptnml(0-2): 13, 1176, 17184, 1178, 21 https://tests.stockfishchess.org/tests/view/605128702433018de7a38ca1 Closes https://github.com/official-stockfish/Stockfish/pull/3397 --------- Verified for correctness by running perft on the following position: ./stockfish position fen 4rrk1/1p1nq3/p7/2p1P1pp/3P2bp/3Q1Bn1/PPPB4/1K2R1NR w - - 40 21 go perft 6 Nodes searched: 6136386434 -------- 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: Wed Mar 17 10:34:02 2021 +0100 Timestamp: 1615973642 Remove advanced_pawn_push() Continuation of work by @topologist: we now do futility pruning and movecount pruning in qsearch() for pawn pushes up to the 7th rank. So the condition to avoid the pruning is if the move is a promotion or not. This allows to get rid of the advanced_pawn_push() function in position.h alltogether. Passed STC https://tests.stockfishchess.org/tests/view/6048c5842433018de7a387e6 LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 34424 W: 3081 L: 3015 D: 28328 Elo +0.67 Ptnml(0-2): 110, 2442, 12052, 2488, 120 Passed LTC https://tests.stockfishchess.org/tests/view/6048f7d22433018de7a387f0 LLR: 2.94 (-2.94,2.94) {-0.75,0.25} Total: 142024 W: 5170 L: 5202 D: 131652 Elo -0.08 Ptnml(0-2): 50, 4678, 61613, 4596, 75 Closes https://github.com/official-stockfish/Stockfish/pull/3390 Bench: 4339126 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: Tue Mar 16 22:34:23 2021 +0100 Timestamp: 1615930463 Simplify move generation (2/2) STC: LLR: 2.97 (-2.94,2.94) {-1.25,0.25} Total: 39352 W: 3551 L: 3493 D: 32308 Elo +0.51 Ptnml(0-2): 143, 2695, 13928, 2781, 129 https://tests.stockfishchess.org/tests/view/6050007a2433018de7a38bbb LTC: LLR: 2.96 (-2.94,2.94) {-0.75,0.25} Total: 44944 W: 1629 L: 1596 D: 41719 Elo +0.26 Ptnml(0-2): 22, 1319, 19762, 1342, 27 https://tests.stockfishchess.org/tests/view/60500e892433018de7a38bc4 Closes https://github.com/official-stockfish/Stockfish/pull/3399 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: Tue Mar 16 22:32:53 2021 +0100 Timestamp: 1615930373 Simplify move generation (1/2) STC: LLR: 2.95 (-2.94,2.94) {-1.25,0.25} Total: 29792 W: 2611 L: 2545 D: 24636 Elo +0.77 Ptnml(0-2): 94, 1982, 10659, 2086, 75 https://tests.stockfishchess.org/tests/view/604fe5b62433018de7a38ba8 LTC: LLR: 2.92 (-2.94,2.94) {-0.75,0.25} Total: 22040 W: 826 L: 777 D: 20437 Elo +0.77 Ptnml(0-2): 8, 646, 9664, 693, 9 https://tests.stockfishchess.org/tests/view/604fec892433018de7a38bac Closes https://github.com/official-stockfish/Stockfish/pull/3399 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: Tue Mar 16 20:54:52 2021 +0100 Timestamp: 1615924492 Introduce least_significant_square_bb() Introducing least_significant_square_bb(). It is a function that returns a value equal to square_bb(lsb(bb)), but it uses fewer instruction. It should speed up more on older processors like armv7-a Clang. Passed STC: LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 213200 W: 19171 L: 18753 D: 175276 Elo +0.68 Ptnml(0-2): 680, 14513, 75831, 14861, 715 https://tests.stockfishchess.org/tests/view/604bc7632433018de7a38982 Closes https://github.com/official-stockfish/Stockfish/pull/3391 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: Topologist
Date: Wed Mar 10 12:32:53 2021 +0100 Timestamp: 1615375973 Change advanced pawn push threshold A pawn push is now considered to be "advanced" if the relative destination rank is > 6 (previously it was > 5). This affects the search heuristic. Also remove an assert concerning en passant moves in qsearch(). STC: LLR: 2.97 (-2.94,2.94) {-0.25,1.25} Total: 46744 W: 4224 L: 4040 D: 38480 Elo +1.37 Ptnml(0-2): 165, 3206, 16451, 3380, 170 https://tests.stockfishchess.org/tests/view/604746082433018de7a3872e LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 107840 W: 4198 L: 3892 D: 99750 Elo +0.99 Ptnml(0-2): 58, 3472, 46557, 3772, 61 https://tests.stockfishchess.org/tests/view/60475eae2433018de7a38737 Closes https://github.com/official-stockfish/Stockfish/pull/3389 Bench: 4796780 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 Mar 7 21:16:38 2021 +0100 Timestamp: 1615148198 Use Bitboard over Square in movegen It uses pos.checkers() on target when movegen is the type of EVASION. It simplify the code. And it's also expected a slightly speed up, because Bitboard is more direct when doing bitwise. Passed STC: LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 28176 W: 2506 L: 2437 D: 23233 Elo +0.85 Ptnml(0-2): 80, 1904, 10063, 1949, 92 https://tests.stockfishchess.org/tests/view/60421d18ddcba5f0627bb6a9 Passed LTC: LLR: 2.93 (-2.94,2.94) {-0.75,0.25} Total: 9704 W: 402 L: 341 D: 8961 Elo +2.18 Ptnml(0-2): 3, 279, 4230, 334, 6 https://tests.stockfishchess.org/tests/view/60422823ddcba5f0627bb6ae closes https://github.com/official-stockfish/Stockfish/pull/3383 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: mattginsberg
Date: Sun Mar 7 21:10:04 2021 +0100 Timestamp: 1615147804 Deal with commented lines in UCI input commands starting with '#' as the first character will be ignored closes https://github.com/official-stockfish/Stockfish/pull/3378 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: noobpwnftw
Date: Sun Mar 7 20:02:11 2021 +0100 Timestamp: 1615143731 Do not try to use large pages on 32 bit Windows. verified to work on windows XP. fixes #3379 closes https://github.com/official-stockfish/Stockfish/pull/3380 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: Sun Mar 7 14:26:54 2021 +0100 Timestamp: 1615123614 Add Stockfish namespace. fixes #3350 and is a small cleanup that might make it easier to use SF in separate projects, like a NNUE trainer or similar. closes https://github.com/official-stockfish/Stockfish/pull/3370 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: Antoine Champion
Date: Sun Mar 7 14:05:01 2021 +0100 Timestamp: 1615122301 Clean functions returning by const values The codebase contains multiple functions returning by const-value. This patch is a small cleanup making those function returns by value instead, removing the const specifier. closes https://github.com/official-stockfish/Stockfish/pull/3328 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: Fri Feb 26 19:45:29 2021 +0100 Timestamp: 1614365129 Introduce DistanceFromPV We introduce a metric for each internal node in search, called DistanceFromPV. This distance indicated how far the current node is from the principal variation. We then use this distance to search the nodes which are close to the PV a little deeper (up to 4 plies deeper than the PV): this improves the quality of the search at these nodes and bring better updates for the PV during search. STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 54936 W: 5047 L: 4850 D: 45039 Elo +1.25 Ptnml(0-2): 183, 3907, 19075, 4136, 167 https://tests.stockfishchess.org/tests/view/6037b88e7f517a561bc4a392 LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 49608 W: 1880 L: 1703 D: 46025 Elo +1.24 Ptnml(0-2): 22, 1514, 21555, 1691, 22 https://tests.stockfishchess.org/tests/view/6038271b7f517a561bc4a3cb Closes https://github.com/official-stockfish/Stockfish/pull/3369 Bench: 5037279 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: Sat Feb 20 22:49:39 2021 +0100 Timestamp: 1613857779 Introduce ProbCut for check evasions The idea of this patch can be described as follows: if we are in check and the transposition table move is a capture that returns a value far above beta, we can assume that the opponent just blundered a piece by giving check, and we return the transposition table value. This is similar to the usual probCut logic for quiet moves, but with a different threshold. Passed STC LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 33440 W: 3056 L: 2891 D: 27493 Elo +1.71 Ptnml(0-2): 110, 2338, 11672, 2477, 123 https://tests.stockfishchess.org/tests/view/602cd1087f517a561bc49bda Passed LTC LLR: 2.98 (-2.94,2.94) {0.25,1.25} Total: 10072 W: 401 L: 309 D: 9362 Elo +3.17 Ptnml(0-2): 2, 288, 4365, 378, 3 https://tests.stockfishchess.org/tests/view/602ceea57f517a561bc49bf0 The committed version has an additional fix to never return unproven wins in the tablebase range or the mate range. This fix passed tests for non- regression at STC and LTC: STC: LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 26240 W: 2354 L: 2280 D: 21606 Elo +0.98 Ptnml(0-2): 85, 1763, 9372, 1793, 107 https://tests.stockfishchess.org/tests/view/602d86a87f517a561bc49c7a LTC: LLR: 2.95 (-2.94,2.94) {-0.75,0.25} Total: 35304 W: 1299 L: 1256 D: 32749 Elo +0.42 Ptnml(0-2): 14, 1095, 15395, 1130, 18 https://tests.stockfishchess.org/tests/view/602d98d17f517a561bc49c83 Closes https://github.com/official-stockfish/Stockfish/pull/3362 Bench: 3830215 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: Sat Feb 20 22:22:07 2021 +0100 Timestamp: 1613856127 Tune search parameters (with Unai Corzo) The values used in this patch are taken from a SPSA parameter tuning session originated by Unai Corzo (@unaiic), but the final difference of his tune was multiplied x2 by hand. Most of the credits should go to him :-) STC: https://tests.stockfishchess.org/tests/view/602f03d07f517a561bc49d40 LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 67664 W: 6252 L: 6035 D: 55377 Elo +1.11 Ptnml(0-2): 256, 4799, 23527, 4972, 278 LTC: https://tests.stockfishchess.org/tests/view/602f41697f517a561bc49d5a LLR: 2.96 (-2.94,2.94) {0.25,1.25} Total: 26256 W: 1034 L: 906 D: 24316 Elo +1.69 Ptnml(0-2): 10, 804, 11377, 922, 15 Closes https://github.com/official-stockfish/Stockfish/pull/3363 Bench: 3957653 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 Feb 20 22:19:14 2021 +0100 Timestamp: 1613855954 Restore development version 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: Thu Feb 18 22:14:55 2021 +0100 Timestamp: 1613682895 Stockfish 13 Official release version of Stockfish 13 Bench: 3766422 ----- It is our pleasure to release Stockfish 13 to chess fans worldwide. As usual, downloads are freely available at https://stockfishchess.org The Stockfish project builds on a thriving community of enthusiasts who contribute their expertise, time, and resources to build a free and open-source chess engine that is robust, widely available, and very strong. We would like to thank them all! The good news first: from now on, our users can expect more frequent high-quality releases of Stockfish! Sadly, this decision has been triggered by the start of sales of the Fat Fritz 2 engine by ChessBase, which is a copy of a very recent development version of Stockfish with minor modifications. We refer to our statement on Fat Fritz 2[1] and a community blog[2] for further information. This version of Stockfish is significantly stronger than any of its predecessors. Stockfish 13 outperforms Stockfish 12 by at least 35 Elo[3]. When playing against a one-year-old Stockfish, it wins 60 times more game pairs than it loses[4]. This release features an NNUE network retrained on billions of positions, much faster network evaluation code, and significantly improved search heuristics, as well as additional evaluation tweaks. In the course of its development, this version has won the superfinals of the TCEC Season 19 and TCEC Season 20. Going forward, the Leela Chess Zero and Stockfish teams will join forces to demonstrate our commitment to open source chess engines and training tools, and open data. We are convinced that our free and open-source chess engines serve the chess community very well. Stay safe and enjoy chess! The Stockfish team [1] https://blog.stockfishchess.org/post/643239805544792064/statement-on-fat-fritz-2 [2] https://lichess.org/blog/YCvy7xMAACIA8007/fat-fritz-2-is-a-rip-off [3] https://tests.stockfishchess.org/tests/view/602bcccf7f517a561bc49b11 [4] https://tests.stockfishchess.org/tests/view/600fbb9c735dd7f0f0352d59 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: Tue Feb 16 16:40:54 2021 +0100 Timestamp: 1613490054 Update README.md • reorder some sections of the README file • add reference to the AUTHORS file • rename Syzygybases to Syzygy tablebases • add pointer to the Discord channel • more precise info about the GPLv3 licence 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: Tue Feb 16 01:31:42 2021 +0100 Timestamp: 1613435502 Small trivial clean-ups, February 2021 Closes https://github.com/official-stockfish/Stockfish/pull/3329 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: Mon Feb 15 23:58:03 2021 +0100 Timestamp: 1613429883 Update Top CPU Contributors 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: Thu Feb 11 23:39:06 2021 +0100 Timestamp: 1613083146 PV-Nodes likely to fail low Do not decrease reduction at pv-nodes which are likely to fail low. The idea of this patch can be described as following: during the search, if a node on the principal variation was re-searched in non-pv search and this re-search got a value which was much lower than alpha, then we can assume that this pv-node is likely to fail low again, and we can reduce more aggressively at this node. Passed STC https://tests.stockfishchess.org/tests/view/6023a5fa7f517a561bc49638 LLR: 2.95 (-2.94,2.94) {-0.25,1.25} Total: 70288 W: 6443 L: 6223 D: 57622 Elo +1.09 Ptnml(0-2): 239, 5022, 24436, 5174, 273 Passed LTC https://tests.stockfishchess.org/tests/view/6023f2617f517a561bc49661 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 105656 W: 4048 L: 3748 D: 97860 Elo +0.99 Ptnml(0-2): 67, 3312, 45761, 3630, 58 Closes https://github.com/official-stockfish/Stockfish/pull/3349 Bench: 3766422 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: mattginsberg
Date: Thu Feb 11 22:29:35 2021 +0100 Timestamp: 1613078975 Better code for hash table generation This patch removes some magic numbers in TT bit management and introduce proper constants in the code, to improve documentation and ease further modifications. No function 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: Gian-Carlo Pascutto
Date: Wed Feb 10 19:54:26 2021 +0100 Timestamp: 1612983266 Enable New Pass Manager for Clang. It's about 1% speedup for Stockfish. Result of 100 runs ================== base (...fish_clang12) = 1946851 +/- 3717 test (./stockfish ) = 1967276 +/- 3408 diff = +20425 +/- 2438 speedup = +0.0105 P(speedup > 0) = 1.0000 Thanks to David Major for making me aware of this part of LLVM development. closes https://github.com/official-stockfish/Stockfish/pull/3346 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: Gian-Carlo Pascutto
Date: Wed Feb 10 19:52:20 2021 +0100 Timestamp: 1612983140 Disable ThinLTO when using Clang. Benchmarking with current Clang 12 shows that and ThinLTO is a pessimization, see issue #3341. closes https://github.com/official-stockfish/Stockfish/pull/3345 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: Andy Pilate
Date: Wed Feb 10 19:50:44 2021 +0100 Timestamp: 1612983044 Fixes FreeBSD compilation when using Clang closes https://github.com/official-stockfish/Stockfish/pull/3342 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 Feb 8 21:42:03 2021 +0100 Timestamp: 1612816923 Search Parameters Tuning A simple tuning on search.cpp. based SPSA test: https://tests.stockfishchess.org/tests/view/601f2a787f517a561bc493cd passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 117840 W: 10796 L: 10508 D: 96536 Elo +0.85 Ptnml(0-2): 422, 8381, 41041, 8639, 437 https://tests.stockfishchess.org/tests/view/602144c37f517a561bc494ae passed LTC: LLR: 2.96 (-2.94,2.94) {0.25,1.25} Total: 25024 W: 972 L: 847 D: 23205 Elo +1.74 Ptnml(0-2): 7, 767, 10847, 876, 15 https://tests.stockfishchess.org/tests/view/602156877f517a561bc494be closes https://github.com/official-stockfish/Stockfish/pull/3340 Bench: 3974098 see source |