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Author	SHA1	Message	Date
Daniel MonroeandDisservin	ba145332c9	Remove time reduction for recaptures ... Passed simplification STC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 54016 W: 14098 L: 13902 D: 26016 Ptnml(0-2): 165, 5797, 14919, 5931, 196 https://tests.stockfishchess.org/tests/view/6758a90486d5ee47d954201e Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 296940 W: 75631 L: 75689 D: 145620 Ptnml(0-2): 145, 28928, 90384, 28866, 147 https://tests.stockfishchess.org/tests/view/6758df7a86d5ee47d9542091 closes https://github.com/official-stockfish/Stockfish/pull/5719 Bench: 1148169	2024-12-22 15:17:55 +01:00
Daniel MonroeandDisservin	70bb317afe	Bonus for a prior capture that causes a fail low. ... This tweak adds a bonus equal to twice the stat_bonus for the current depth for a prior capture that caused a fail high, similar to the prior countermove bonus we currently have. Passed STC https://tests.stockfishchess.org/tests/view/673bc14b86d5ee47d953f1f2 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 105824 W: 27538 L: 27118 D: 51168 Ptnml(0-2): 358, 12370, 27024, 12814, 346 Passed LTC https://tests.stockfishchess.org/tests/view/673ccbff86d5ee47d953f2d9 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 134502 W: 34340 L: 33820 D: 66342 Ptnml(0-2): 102, 14634, 37229, 15214, 72 closes https://github.com/official-stockfish/Stockfish/pull/5695 Bench: 1107054	2024-12-08 19:46:07 +01:00
Daniel MonroeandDisservin	55905e562a	Simplify movepick coefficients ... This commit sets movepick weights for all continuation histories to 1 and doubles the weight for the main history, inspired by a recent tune. Passed STC https://tests.stockfishchess.org/tests/view/6735151a86d5ee47d953eaa2 LLR: 2.92 (-2.94,2.94) <-1.75,0.25> Total: 29984 W: 7840 L: 7612 D: 14532 Ptnml(0-2): 85, 3511, 7571, 3741, 84 Passed LTC https://tests.stockfishchess.org/tests/view/673667a986d5ee47d953ec78 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 26268 W: 6726 L: 6510 D: 13032 Ptnml(0-2): 16, 2797, 7288, 3021, 12 closes https://github.com/official-stockfish/Stockfish/pull/5680 Bench: 1130293	2024-12-08 19:45:48 +01:00
Daniel MonroeandDisservin	fb6be17ad4	Simplify statscore at captures ... Simplify statscores for captures, setting them to 0 A recent tweak of Vizvezdenec finds substantial elo gain from giving captures a separate statscore, which is used mainly for reductions. The idea is that the old combination of quiet histories was inappropriate and that a value based on the capture history is more suitable. This simplification sets the statscore for captures to 0, suggesting that the elo gain came from rectifying the quiet history/capture mismatch. Passed STC (against a slightly older version of Viz's patch) https://tests.stockfishchess.org/tests/view/673ac6e286d5ee47d953f0ec LR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 57312 W: 14872 L: 14672 D: 27768 Ptnml(0-2): 152, 6761, 14649, 6923, 171 Passed LTC (against Viz's newest patch) https://tests.stockfishchess.org/tests/view/673cd00686d5ee47d953f2db LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 88236 W: 22510 L: 22358 D: 43368 Ptnml(0-2): 70, 9530, 24745, 9724, 49 closes https://github.com/official-stockfish/Stockfish/pull/5691 Bench: 959947	2024-11-22 23:34:15 +01:00
Daniel MonroeandDisservin	e74452ae44	Reduce on ttcaptures if not capture ... Tweak ttcapture reduction. Reduce on ttcaptures only if the current move is a capture Passed STC: LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 94912 W: 24896 L: 24492 D: 45524 Ptnml(0-2): 301, 11197, 24087, 11539, 332 https://tests.stockfishchess.org/tests/view/66cd2264bf8c9d8780fdab34 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 60738 W: 15465 L: 15096 D: 30177 Ptnml(0-2): 42, 6573, 16775, 6932, 47 https://tests.stockfishchess.org/tests/view/66cf356d9de3e7f9b33d0fde closes https://github.com/official-stockfish/Stockfish/pull/5562 Bench: 1268700	2024-09-09 17:48:26 +02:00