EVASION
};
- // Functions
- bool castling_is_check(const Position&, CastlingSide);
-
// Helper templates
template<CastlingSide Side>
MoveStack* generate_castle_moves(const Position&, MoveStack*);
mlist = generate_direct_checks<KNIGHT>(pos, mlist, us, dc, ksq);
mlist = generate_direct_checks<BISHOP>(pos, mlist, us, dc, ksq);
mlist = generate_direct_checks<ROOK>(pos, mlist, us, dc, ksq);
- mlist = generate_direct_checks<QUEEN>(pos, mlist, us, dc, ksq);
-
- // Castling moves that give check. Very rare but nice to have!
- if ( pos.can_castle_queenside(us)
- && (square_rank(ksq) == square_rank(pos.king_square(us)) || square_file(ksq) == FILE_D)
- && castling_is_check(pos, QUEEN_SIDE))
- mlist = generate_castle_moves<QUEEN_SIDE>(pos, mlist);
-
- if ( pos.can_castle_kingside(us)
- && (square_rank(ksq) == square_rank(pos.king_square(us)) || square_file(ksq) == FILE_F)
- && castling_is_check(pos, KING_SIDE))
- mlist = generate_castle_moves<KING_SIDE>(pos, mlist);
-
- return mlist;
+ return generate_direct_checks<QUEEN>(pos, mlist, us, dc, ksq);
}
}
return mlist;
}
-
- bool castling_is_check(const Position& pos, CastlingSide side) {
-
- // After castling opponent king is attacked by the castled rook?
- File rookFile = (side == QUEEN_SIDE ? FILE_D : FILE_F);
- Color us = pos.side_to_move();
- Square ksq = pos.king_square(us);
- Bitboard occ = pos.occupied_squares();
-
- clear_bit(&occ, ksq); // Remove our king from the board
- Square rsq = make_square(rookFile, square_rank(ksq));
- return bit_is_set(rook_attacks_bb(rsq, occ), pos.king_square(opposite_color(us)));
- }
}