 Taras VukandDisservin
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85403a89ba
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Skip LMR for 2nd move at the root only
This patch reverts commit by Vizvezdenec:
https://github.com/official-stockfish/Stockfish/commit/27139dedac14af400f5b18e2ab50aca3f8cf0e33
Passed STC:
https://tests.stockfishchess.org/tests/view/65660b4a136acbc57354f13d
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 301952 W: 76271 L: 76344 D: 149337
Ptnml(0-2): 1053, 36293, 76348, 36238, 1044
Passed LTC:
https://tests.stockfishchess.org/tests/view/656738ab136acbc573550e39
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 25050 W: 6283 L: 6063 D: 12704
Ptnml(0-2): 10, 2756, 6775, 2972, 12
closes https://github.com/official-stockfish/Stockfish/pull/4895
Bench: 1722961
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2023-12-02 11:41:31 +01:00 |
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Taras VukandDisservin
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863a1f2b4c
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Introduce recapture extensions
When in a PV-node this patch extends ttMove if it is a recapture and has a good
history.
Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 83840 W: 21560 L: 21166 D: 41114
Ptnml(0-2): 343, 9905, 21027, 10305, 340
https://tests.stockfishchess.org/tests/view/654f4b02136acbc5735308ab
Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 165318 W: 41068 L: 40476 D: 83774
Ptnml(0-2): 98, 18670, 44517, 19290, 84
https://tests.stockfishchess.org/tests/view/654fde04136acbc5735314e0
closes https://github.com/official-stockfish/Stockfish/pull/4872
Bench: 1393911
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2023-11-15 19:32:59 +01:00 |
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Taras VukandJoost VandeVondele
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442c294a07
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Use stat_malus when decreasing stats
This patch applies stat_bonus when increasing and stat_malus when decreasing stats.
Passed STC:
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 133792 W: 34221 L: 33758 D: 65813
Ptnml(0-2): 477, 15764, 33959, 16211, 485
https://tests.stockfishchess.org/tests/view/654699f3136acbc5735256b2
Passed LTC:
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 67374 W: 16912 L: 16523 D: 33939
Ptnml(0-2): 42, 7528, 18171, 7891, 55
https://tests.stockfishchess.org/tests/view/65474558136acbc5735263ab
closes https://github.com/official-stockfish/Stockfish/pull/4864
bench: 1114417
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2023-11-05 19:54:59 +01:00 |
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Taras VukandDisservin
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871ab55f01
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Simplify futility pruning formula
closes https://github.com/official-stockfish/Stockfish/pull/4848
No functional change
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2023-10-27 17:16:28 +02:00 |
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Taras VukandJoost VandeVondele
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b7b7800e2b
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Simplify futilityBase formula
This patch replaces std::min(ss->staticEval, bestValue) with ss->staticEval in the futilityBase formula.
Original idea by Vizvezdenec: https://tests.stockfishchess.org/tests/view/64ce66795b17f7c21c0d85f3
Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 116928 W: 29925 L: 29793 D: 57210
Ptnml(0-2): 399, 13558, 30446, 13634, 427
https://tests.stockfishchess.org/tests/view/653285aade6d262d08d385dd
Passed LTC:
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 50868 W: 12947 L: 12757 D: 25164
Ptnml(0-2): 30, 5414, 14355, 5606, 29
https://tests.stockfishchess.org/tests/view/65336ffbde6d262d08d39ba0
closes https://github.com/official-stockfish/Stockfish/pull/4837
bench: 1241996
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2023-10-22 16:16:02 +02:00 |
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Taras VukandJoost VandeVondele
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e18619d078
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Subtract the margin from the value returned by ProbCut
This patch subtracts the margin from the value returned by ProbCut.
Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 46112 W: 11940 L: 11610 D: 22562
Ptnml(0-2): 131, 5318, 11842, 5620, 145
https://tests.stockfishchess.org/tests/view/652ea42ade6d262d08d329dd
Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 86880 W: 22192 L: 21776 D: 42912
Ptnml(0-2): 43, 9213, 24510, 9633, 41
https://tests.stockfishchess.org/tests/view/652f70ffde6d262d08d33e8d
closes https://github.com/official-stockfish/Stockfish/pull/4835
bench: 1135313
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2023-10-21 10:34:12 +02:00 |
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Taras VukandJoost VandeVondele
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7a4de96159
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Skip futility pruning if ttMove has bad history
Passed STC:
LLR: 2.96 (-2.94,2.94) <0.00,2.00>
Total: 52416 W: 13465 L: 13128 D: 25823
Ptnml(0-2): 128, 6024, 13604, 6287, 165
https://tests.stockfishchess.org/tests/view/651fadd4ac577114367277bf
Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 87348 W: 22234 L: 21818 D: 43296
Ptnml(0-2): 38, 9240, 24698, 9664, 34
https://tests.stockfishchess.org/tests/view/65201932ac57711436728218
closes https://github.com/official-stockfish/Stockfish/pull/4825
bench: 1246560
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2023-10-08 07:56:07 +02:00 |
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