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Tuning of a Null Move Parameter 

STC:
LLR: 2.99 (-2.94,2.94) <-0.50,2.50>
Total: 78744 W: 19956 L: 19664 D: 39124
Ptnml(0-2): 259, 9005, 20573, 9255, 280
https://tests.stockfishchess.org/tests/view/6172017a38cb9784038af947

LTC:
LLR: 2.95 (-2.94,2.94) <0.50,3.50>
Total: 68528 W: 17309 L: 16964 D: 34255
Ptnml(0-2): 41, 7194, 19455, 7527, 47
https://tests.stockfishchess.org/tests/view/6172994d38cb9784038af983

closes https://github.com/official-stockfish/Stockfish/pull/3756

bench: 6689428
pull/3757/head
FauziAkram 2021-10-22 03:04:28 +03:00 committed by Joost VandeVondele
parent 927a84d310
commit fc8213c7df
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -825,7 +825,7 @@ namespace {
&& (ss-1)->statScore < 23767
&& eval >= beta
&& eval >= ss->staticEval
&& ss->staticEval >= beta - 20 * depth - improvement / 15 + 177
&& ss->staticEval >= beta - 20 * depth - improvement / 15 + 204
&& !excludedMove
&& pos.non_pawn_material(us)
&& (ss->ply >= thisThread->nmpMinPly || us != thisThread->nmpColor))