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Simplify shelter: always do strength and danger

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This check of pawns before subtracting danger can be removed.

STC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 21174 W: 4361 L: 4239 D: 12574
http://tests.stockfishchess.org/tests/view/5b00b9f90ebc5914abc12680

LTC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 56980 W: 8377 L: 8309 D: 40294
http://tests.stockfishchess.org/tests/view/5b00ca750ebc5914abc12683

Closes https://github.com/official-stockfish/Stockfish/pull/1607

Bench: 4746692
This commit is contained in:
protonspring 2018-05-21 09:50:38 +02:00 • committed by Stéphane Nicolet
parent fd4585ef07
commit 335dc2d021
1 changed files with 2 additions and 2 deletions
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4
src/pawns.cpp
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@ -234,8 +234,8 @@ Value Entry::evaluate_shelter(const Position& pos, Square ksq) {
int d = std::min(f, ~f); int d = std::min(f, ~f);
safety += ShelterStrength[d][ourRank]; safety += ShelterStrength[d][ourRank];
if (ourRank || theirRank) safety -= StormDanger[ourRank && (ourRank == theirRank - 1) ? BlockedByPawn : UnBlocked]
safety -= StormDanger[ourRank && (ourRank == theirRank - 1) ? BlockedByPawn : UnBlocked][d][theirRank]; [d][theirRank];
} }
return safety; return safety;