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Simplify Futility Move Count

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remove two constants

STC
LLR: 2.95 (-2.94,2.94) {-1.50,0.50}
Total: 62050 W: 11903 L: 11802 D: 38345
Ptnml(0-2): 1002, 7346, 14283, 7320, 1065
http://tests.stockfishchess.org/tests/view/5e41d73be70d848499f63c6d

LTC
LLR: 2.93 (-2.94,2.94) {-1.50,0.50}
Total: 12850 W: 1679 L: 1572 D: 9599
Ptnml(0-2): 82, 1171, 3818, 1249, 96
http://tests.stockfishchess.org/tests/view/5e42bf07e70d848499f63cc0

Bench: 4762351
This commit is contained in:
protonspring 2020-02-10 15:18:16 -07:00 • committed by Joost VandeVondele
parent be5a2f015e
commit 10ead8a724
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -79,7 +79,7 @@ namespace {
} }
constexpr int futility_move_count(bool improving, Depth depth) { constexpr int futility_move_count(bool improving, Depth depth) {
return (5 + depth * depth) * (1 + improving) / 2 - 1; return (4 + depth * depth) / (2 - improving);
} }
// History and stats update bonus, based on depth // History and stats update bonus, based on depth