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| Subject: Latest abrok Development Version March 25th / 26th (SF The gift that keeps on giving ) Fri Mar 27, 2020 7:23 am | |
| !! latest version !!
Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers Linux x64 | Author: Lyudmil Antonov Date: Thu Mar 26 17:49:28 2020 +0100 Timestamp: 1585241368 Tuned history reduction Value after a long Bayesian tuning, using a home-made classification approach. STC https://tests.stockfishchess.org/tests/view/5e7c7b16e42a5c3b3ca2eb66 LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 45472 W: 8992 L: 8732 D: 27748 Elo +1.99 Ptnml(0-2): 795, 5276, 10352, 5500, 813 LTC https://tests.stockfishchess.org/tests/view/5e7c8be7e42a5c3b3ca2eb75 LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 22744 W: 3085 L: 2849 D: 16810 Elo +3.61 Ptnml(0-2): 156, 2090, 6658, 2298, 170 closes https://github.com/official-stockfish/Stockfish/pull/2597 Bench 5030855 | Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers Linux x64 | Author: xoto10 Date: Thu Mar 26 17:46:51 2020 +0100 Timestamp: 1585241211 Remove passed_count from almostUnwinnable. This simplification allows the almostUnwinnable flag to match endgames where the pawns are all on the same flank but are not symmetrical. STC: LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 23356 W: 4543 L: 4395 D: 14418 Elo +2.20 Ptnml(0-2): 346, 2651, 5582, 2707, 392 https://tests.stockfishchess.org/tests/view/5e7b8f57e42a5c3b3ca2eb09 LTC: LLR: 2.96 (-2.94,2.94) {-1.50,0.50} Total: 31778 W: 4097 L: 4023 D: 23658 Elo +0.81 Ptnml(0-2): 199, 2853, 9729, 2891, 217 https://tests.stockfishchess.org/tests/view/5e7ba5ade42a5c3b3ca2eb16 closes https://github.com/official-stockfish/Stockfish/pull/2596 Bench 4777139 | Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers Linux x64 | Author: protonspring Date: Wed Mar 25 21:42:33 2020 +0100 Timestamp: 1585168953 Remove KNPKB endgame. This is a functional simplification that removes the KNPKB endgame. Testing on only KNPKB positions suggests that this removal actually gains Elo: Score of patch vs master: 3380 - 3035 - 33585 [0.504] 40000 Elo difference: 3.0 +/- 1.4, LOS: 100.0 %, DrawRatio: 84.0 % Score of patch vs master: 290 - 36 - 39674 [0.503] 40000 Elo difference: 2.2 +/- 0.3, LOS: 100.0 %, DrawRatio: 99.2 % removal also doesn't cause a regression with the standard book: STC LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 71376 W: 13794 L: 13719 D: 43863 Elo +0.37 Ptnml(0-2): 1066, 8092, 17290, 8181, 1059 https://tests.stockfishchess.org/tests/view/5e76c3d5e42a5c3b3ca2e8be LTC LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 28394 W: 3731 L: 3662 D: 21001 Elo +0.84 Ptnml(0-2): 167, 2339, 9116, 2408, 167 https://tests.stockfishchess.org/tests/view/5e76e5eae42a5c3b3ca2e8d3 closes https://github.com/official-stockfish/Stockfish/pull/2594 Bench 5480811 |
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