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Simplify futility pruning for captures

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STC https://tests.stockfishchess.org/tests/view/5f61f0e4b91f2ec371e429c2
LLR: 2.94 (-2.94,2.94) {-1.25,0.25}
Total: 75512 W: 8747 L: 8704 D: 58061
Ptnml(0-2): 440, 6589, 23683, 6576, 468

LTC https://tests.stockfishchess.org/tests/view/5f6215d3912c15f19854b801
LLR: 2.95 (-2.94,2.94) {-0.75,0.25}
Total: 92912 W: 5030 L: 4992 D: 82890
Ptnml(0-2): 88, 4363, 37532, 4369, 104

closes https://github.com/official-stockfish/Stockfish/pull/3129

bench: 3856086
This commit is contained in:
Unai Corzo 2020-09-16 20:42:38 +02:00 • committed by Joost VandeVondele
parent 0ca93c5b94
commit 64a63464d7
1 changed files with 0 additions and 1 deletions
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1
src/search.cpp
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@ -1056,7 +1056,6 @@ moves_loop: // When in check, search starts from here
if ( !givesCheck
&& lmrDepth < 6
&& !(PvNode && abs(bestValue) < 2)
&& PieceValue[MG][type_of(movedPiece)] >= PieceValue[MG][type_of(pos.piece_on(to_sq(move)))]
&& !ss->inCheck
&& ss->staticEval + 169 + 244 * lmrDepth
+ PieceValue[MG][type_of(pos.piece_on(to_sq(move)))] <= alpha)