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FutilityValue formula tweak

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Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 29600 W: 7979 L: 7662 D: 13959
Ptnml(0-2): 138, 3446, 7324, 3745, 147
https://tests.stockfishchess.org/tests/view/67ac7dff52879dfd14d7e7da

Passed LTC:
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 49662 W: 12850 L: 12502 D: 24310
Ptnml(0-2): 41, 5354, 13689, 5710, 37
https://tests.stockfishchess.org/tests/view/67acc1b252879dfd14d7e81d

closes https://github.com/official-stockfish/Stockfish/pull/5879

Bench: 2581469
This commit is contained in:
FauziAkram
2025-02-13 14:47:19 +03:00
committed by Disservin
parent d54240c50a
commit fa6c30af81
1 changed files with 4 additions and 1 deletions
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5
src/search.cpp
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@@ -1055,7 +1055,10 @@ moves_loop: // When in check, search starts here
lmrDepth += history / 3576;
Value futilityValue = ss->staticEval + (bestMove ? 49 : 135) + 150 * lmrDepth;
Value futilityValue = ss->staticEval + (bestMove ? 49 : 143) + 116 * lmrDepth;
if (bestValue < ss->staticEval - 150 && lmrDepth < 7)
futilityValue += 108;
// Futility pruning: parent node
if (!ss->inCheck && lmrDepth < 12 && futilityValue <= alpha)