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Tweak futility formula

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Passed STC
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 248448 W: 64344 L: 63718 D: 120386
Ptnml(0-2): 750, 29172, 63783, 29740, 779
https://tests.stockfishchess.org/tests/view/68056f5598cd372e3aea2901

Passed LTC
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 118824 W: 30358 L: 29874 D: 58592
Ptnml(0-2): 59, 12797, 33228, 13257, 71
https://tests.stockfishchess.org/tests/view/6805675698cd372e3aea20d0

closes https://github.com/official-stockfish/Stockfish/pull/6004

bench 1839796
This commit is contained in:
Daniel Monroe
2025-04-20 14:29:29 -07:00
committed by Joost VandeVondele
parent 7988de4aa3
commit 88a524c552
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@@ -1099,7 +1099,7 @@ moves_loop: // When in check, search starts here
lmrDepth += history / 3593;
Value futilityValue = ss->staticEval + (bestMove ? 48 : 146) + 116 * lmrDepth
+ 103 * (bestValue < ss->staticEval - 128);
+ 103 * (bestValue < ss->staticEval - 128 && ss->staticEval > alpha - 50);
// Futility pruning: parent node
// (*Scaler): Generally, more frequent futility pruning