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Allow PvNode in futility pruning for captures.

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Passed non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 148128 W: 39428 L: 39333 D: 69367
Ptnml(0-2): 492, 16326, 40315, 16457, 474
https://tests.stockfishchess.org/tests/view/641c2dbfdb43ab2ba6f804e8

Passed non-regression LTC:
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 376256 W: 100906 L: 101039 D: 174311
Ptnml(0-2): 186, 36697, 114494, 36566, 185
https://tests.stockfishchess.org/tests/view/641d33b2db43ab2ba6f83338

closes https://github.com/official-stockfish/Stockfish/pull/4470

bench: 4935616
This commit is contained in:
peregrineshahin
2023-03-23 13:35:34 +03:00
committed by Joost VandeVondele
parent a9c26357de
commit 3f01e3f41f
1 changed files with 0 additions and 1 deletions
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src/search.cpp
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@@ -1005,7 +1005,6 @@ moves_loop: // When in check, search starts here
{
// Futility pruning for captures (~2 Elo)
if ( !givesCheck
&& !PvNode
&& lmrDepth < 6
&& !ss->inCheck
&& ss->staticEval + 182 + 230 * lmrDepth + PieceValue[EG][pos.piece_on(to_sq(move))]