HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-20 17:16:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Bring back just bishop pins

Browse Source
This commit is contained in:
Gary Linscott
2013-01-26 15:35:00 -05:00
parent 7062db7cb2
commit 57797822f8
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/evaluate.cpp
View File

@@ -577,6 +577,12 @@ Value do_evaluate(const Position& pos, Value& margin) {
mobility += MobilityBonus[Piece][mob];
if (Piece == BISHOP && (PseudoAttacks[Piece][pos.king_square(Them)] & s)) {
const Bitboard between = BetweenBB[s][pos.king_square(Them)] & pos.pieces();
if (!more_than_one(between))
score += make_score(25, 25);
}
// Decrease score if we are attacked by an enemy pawn. Remaining part
// of threat evaluation must be done later when we have full attack info.
if (ei.attackedBy[Them][PAWN] & s)