Color side_to_move() const;
// Bitboard representation of the position
- Bitboard empty_squares() const;
Bitboard occupied_squares() const;
Bitboard pieces(Color c) const;
Bitboard pieces(PieceType pt) const;
bool both_color_bishops(Color c) const;
bool has_pawn_on_7th(Color c) const;
bool is_chess960() const;
-
- // Current thread ID searching on the position
int thread() const;
-
int64_t nodes_searched() const;
void set_nodes_searched(int64_t n);
// Static variables
static Score pieceSquareTable[16][64]; // [piece][square]
static Key zobrist[2][8][64]; // [color][pieceType][square]/[piece count]
- static Key zobEp[64]; // [square]
+ static Key zobEp[8]; // [file]
static Key zobCastle[16]; // [castleRight]
static Key zobSideToMove;
static Key zobExclusion;
return occupied;
}
-inline Bitboard Position::empty_squares() const {
- return ~occupied;
-}
-
inline Bitboard Position::pieces(Color c) const {
return byColorBB[c];
}
}
inline Bitboard Position::attacks_from(Piece p, Square s) const {
- return attacks_from(p, s, occupied_squares());
+ return attacks_from(p, s, occupied);
}
inline Bitboard Position::attackers_to(Square s) const {
- return attackers_to(s, occupied_squares());
+ return attackers_to(s, occupied);
}
inline Bitboard Position::checkers() const {