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Simplify space formula

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STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 16868 W: 3260 L: 3132 D: 10476

LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 16910 W: 2381 L: 2255 D: 12274

bench: 6663531
This commit is contained in:
Alain SAVARD 2016-08-05 10:09:22 -04:00 • committed by Marco Costalba
parent b3525fa9ea
commit 8abb98455f
1 changed files with 2 additions and 3 deletions
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5
src/evaluate.cpp
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@ -703,10 +703,9 @@ namespace {
// ...count safe + (behind & safe) with a single popcount
int bonus = popcount((Us == WHITE ? safe << 32 : safe >> 32) | (behind & safe));
int weight = pos.count<KNIGHT>(Us) + pos.count<BISHOP>(Us)
+ pos.count<KNIGHT>(Them) + pos.count<BISHOP>(Them);
int weight = pos.count<ALL_PIECES>(Us);
return make_score(bonus * weight * weight * 2 / 11, 0);
return make_score(bonus * weight * weight / 22, 0);
}