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Remove check extension

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Passed simplification STC:
https://tests.stockfishchess.org/tests/view/65c38d2ac865510db02836cf
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 52288 W: 13578 L: 13371 D: 25339
Ptnml(0-2): 197, 6171, 13265, 6250, 261

Passed simplification LTC:
https://tests.stockfishchess.org/tests/view/65c4470ec865510db0284473
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 44958 W: 11255 L: 11055 D: 22648
Ptnml(0-2): 37, 4962, 12274, 5176, 30

closes https://github.com/official-stockfish/Stockfish/pull/5041

Bench: 1116591
This commit is contained in:
Muzhen Gaming 2024-02-07 22:00:51 +08:00 • committed by Disservin
parent 15093d43c4
commit 96837bc439
1 changed files with 0 additions and 4 deletions
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4
src/search.cpp
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@ -1071,10 +1071,6 @@ moves_loop: // When in check, search starts here
extension = -1;
}
// Check extensions (~1 Elo)
else if (givesCheck && depth > 10)
extension = 1;
// Quiet ttMove extensions (~1 Elo)
else if (PvNode && move == ttMove && move == ss->killers[0]
&& (*contHist[0])[movedPiece][move.to_sq()] >= 4339)