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Add extension condition to cutoffCnt

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Decrease cutoffCnt increment by 1 if extension is 2 or greater.

Passed STC:
https://tests.stockfishchess.org/tests/view/66577a696b0e318cefa8d34d
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 99200 W: 25703 L: 25297 D: 48200
Ptnml(0-2): 253, 11660, 25390, 12022, 275

Passed LTC:
https://tests.stockfishchess.org/tests/view/665787ab6b0e318cefa8d411
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 124530 W: 31659 L: 31161 D: 61710
Ptnml(0-2): 58, 13578, 34489, 14088, 52

closes https://github.com/official-stockfish/Stockfish/pull/5310

bench 1623228
This commit is contained in:
Viren6 2024-05-30 08:18:04 +01:00 • committed by Joost VandeVondele
parent a4ea183e78
commit a77a895c3b
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -1289,7 +1289,7 @@ moves_loop: // When in check, search starts here
if (value >= beta)
{
ss->cutoffCnt += 1 + !ttMove;
ss->cutoffCnt += 1 + !ttMove - (extension >= 2);
assert(value >= beta); // Fail high
break;
}