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Simplify recapture extension

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Simplifying the extension formula by removing the move == ttMove
condition.

Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 47328 W: 12324 L: 12117 D: 22887
Ptnml(0-2): 134, 5532, 12097, 5795, 106
https://tests.stockfishchess.org/tests/view/665ca5e6fd45fb0f907c41be

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 72126 W: 18378 L: 18209 D: 35539
Ptnml(0-2): 36, 7841, 20130, 8030, 26
https://tests.stockfishchess.org/tests/view/665cb276fd45fb0f907c41f9

closes https://github.com/official-stockfish/Stockfish/pull/5341

Bench: 1399468
This commit is contained in:
FauziAkram 2024-06-02 23:32:58 +03:00 • committed by Disservin
parent 3d6756769c
commit 924a843594
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -1103,7 +1103,7 @@ moves_loop: // When in check, search starts here
}
// Extension for capturing the previous moved piece (~0 Elo on STC, ~1 Elo on LTC)
else if (PvNode && move == ttMove && move.to_sq() == prevSq
else if (PvNode && move.to_sq() == prevSq
&& thisThread->captureHistory[movedPiece][move.to_sq()]
[type_of(pos.piece_on(move.to_sq()))]
> 3988)