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Simplify Fail Low Bonus

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Passed Non-regression STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 302528 W: 78190 L: 78264 D: 146074
Ptnml(0-2): 1029, 35797, 77551, 35993, 894
https://tests.stockfishchess.org/tests/view/66dcebdedc53972b68218c7e

Passed Non-regression LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 122754 W: 31025 L: 30907 D: 60822
Ptnml(0-2): 74, 13597, 33908, 13733, 65
https://tests.stockfishchess.org/tests/view/66e0c38686d5ee47d953a481

closes https://github.com/official-stockfish/Stockfish/pull/5594

Bench: 1646373
This commit is contained in:
Shawn Xu 2024-09-07 15:04:28 -07:00 • committed by Disservin
parent 224c147bd6
commit 5ce7f866a5
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -1365,7 +1365,7 @@ moves_loop: // When in check, search starts here
} }
// Bonus when search fails low and there is a TT move // Bonus when search fails low and there is a TT move
else if (moveCount > 1 && ttData.move && !allNode) else if (ttData.move && !allNode)
thisThread->mainHistory[us][ttData.move.from_to()] << stat_bonus(depth) / 4; thisThread->mainHistory[us][ttData.move.from_to()] << stat_bonus(depth) / 4;
if (PvNode) if (PvNode)