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| Subject: Latest abrok Development Version May 21st (SF The gift that keeps on giving ) Thu May 21, 2020 3:41 pm | |
| !! 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: Stefan Geschwentner Date: Thu May 21 14:11:14 2020 +0200 Timestamp: 1590063074 Tweak knight mobility New tuned values for knight mobility in endgames. STC: LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 112576 W: 21999 L: 21644 D: 68933 Elo +1.10 Ptnml(0-2): 2009, 13084, 25735, 13463, 1997 https://tests.stockfishchess.org/tests/view/5ec58379377121ac09e10272 LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 125192 W: 16200 L: 15671 D: 93321 Elo +1.47 Ptnml(0-2): 891, 11584, 37182, 11983, 956 https://tests.stockfishchess.org/tests/view/5ec5c0b8377121ac09e1028b Closes https://github.com/official-stockfish/Stockfish/pull/2693 Bench: 4778956 | 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: Stéphane Nicolet Date: Thu May 21 14:05:07 2020 +0200 Timestamp: 1590062707 A combo of parameters tweaks This patch is a combinaison of two recent parameters tweaks which had failed narrowly (yellow) at long time control: • improvement in move ordering during search by softening the distinction between bad captures and good captures during move generation, leading to improved awareness of Stockfish of potential piece sacrifices (idea by Rahul Dsilva) • increase in the weight of pawns in the "initiative" part of the evaluation function. With this change Stockfish should have more incentive to exchange pawns when losing, and to keep pawns when winning. STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 10704 W: 2178 L: 1974 D: 6552 Elo +6.62 Ptnml(0-2): 168, 1185, 2464, 1345, 190 https://tests.stockfishchess.org/tests/view/5ec5553b377121ac09e1023d LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 60592 W: 7835 L: 7494 D: 45263 Elo +1.96 Ptnml(0-2): 430, 5514, 18086, 5817, 449 https://tests.stockfishchess.org/tests/view/5ec55ca2377121ac09e10249 Closes https://github.com/official-stockfish/Stockfish/pull/2691 Bench: 4519117 | 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: Thu May 21 13:57:50 2020 +0200 Timestamp: 1590062270 Simplify evaluation for blocked passers. This is a functional simplification of the evaluation code for blocked passers. I've also changed a few variable names for clarity. STC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 141984 W: 27450 L: 27466 D: 87068 Elo -0.04 Ptnml(0-2): 2414, 16511, 33175, 16461, 2431 https://tests.stockfishchess.org/tests/view/5ec4001b05aa4bc72d9759e7 LTC LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 30536 W: 3966 L: 3885 D: 22685 Elo +0.92 Ptnml(0-2): 216, 2841, 9073, 2922, 216 https://tests.stockfishchess.org/tests/view/5ec4bd0d377121ac09e101b7 Closes https://github.com/official-stockfish/Stockfish/pull/2690 Bench: 4704681 |
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