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Simplify condition in futility pruning

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Passed STC
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 427040 W: 111061 L: 111271 D: 204708
Ptnml(0-2): 1709, 48524, 113171, 48500, 1616
https://tests.stockfishchess.org/tests/view/67af01d01a4c73ae1f930ea4

Passed rebased LTC
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 28704 W: 7330 L: 7120 D: 14254
Ptnml(0-2): 8, 3000, 8138, 3186, 20
https://tests.stockfishchess.org/tests/view/67ca629a45214989aa0a123e

closes https://github.com/official-stockfish/Stockfish/pull/5924

Bench: 2050046
This commit is contained in:
Daniel Monroe
2025-03-06 19:04:56 -08:00
committed by Disservin
parent e3660b47bd
commit f9a6d43286
1 changed files with 2 additions and 4 deletions
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6
src/search.cpp
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@@ -1074,10 +1074,8 @@ moves_loop: // When in check, search starts here
lmrDepth += history / 3593; lmrDepth += history / 3593;
Value futilityValue = ss->staticEval + (bestMove ? 48 : 146) + 116 * lmrDepth; Value futilityValue = ss->staticEval + (bestMove ? 48 : 146) + 116 * lmrDepth
+ 103 * (bestValue < ss->staticEval - 128);
if (bestValue < ss->staticEval - 128 && lmrDepth < 8)
futilityValue += 103;
// Futility pruning: parent node // Futility pruning: parent node
// (*Scaler): Generally, more frequent futility pruning // (*Scaler): Generally, more frequent futility pruning