// king is on g8 and there's a white knight on g5, this knight adds
// 2 to kingAdjacentZoneAttacksCount[BLACK].
int kingAdjacentZoneAttacksCount[COLOR_NB];
+
+ Bitboard pinnedPieces[COLOR_NB];
};
// Evaluation grain size, must be a power of 2
const Color Them = (Us == WHITE ? BLACK : WHITE);
const Square Down = (Us == WHITE ? DELTA_S : DELTA_N);
+ ei.pinnedPieces[Us] = pos.pinned_pieces(Us);
+
Bitboard b = ei.attackedBy[Them][KING] = pos.attacks_from<KING>(pos.king_square(Them));
ei.attackedBy[Us][PAWN] = ei.pi->pawn_attacks(Us);
: Piece == ROOK ? attacks_bb< ROOK>(s, pos.pieces() ^ pos.pieces(Us, ROOK, QUEEN))
: pos.attacks_from<Piece>(s);
+ if (ei.pinnedPieces[Us] & s)
+ b &= PseudoAttacks[QUEEN][pos.king_square(Us)];
+
ei.attackedBy[Us][Piece] |= b;
if (b & ei.kingRing[Them])