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Remove static eval threshold for extensions when giving check

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Passed non-regression STC:
https://tests.stockfishchess.org/tests/view/647685d54a36543c4c9f4f2a
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 114688 W: 30701 L: 30571 D: 53416
Ptnml(0-2): 336, 12708, 31136, 12818, 346

Passed non-regression LTC:
https://tests.stockfishchess.org/tests/view/64774b02b81f005b572de770
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 107310 W: 28920 L: 28796 D: 49594
Ptnml(0-2): 33, 10427, 32621, 10531, 43

closes https://github.com/official-stockfish/Stockfish/pull/4599

bench 2597974
This commit is contained in:
Linmiao Xu
2023-05-30 18:24:54 -04:00
committed by Joost VandeVondele
parent 5930c0defb
commit ced0311890
1 changed files with 2 additions and 1 deletions
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3
src/search.cpp
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@@ -1085,7 +1085,8 @@ moves_loop: // When in check, search starts here
}
// Check extensions (~1 Elo)
else if ( givesCheck && depth > 8)
else if ( givesCheck
&& depth > 9)
extension = 1;
// Quiet ttMove extensions (~1 Elo)