/// that the move is a legal move from the position. The return value is
/// a string containing the move in short algebraic notation.
-const string move_to_san(const Position& pos, Move m) {
+const string move_to_san(Position& pos, Move m) {
assert(pos.is_ok());
assert(move_is_ok(m));
// Position::move_is_check doesn't detect all checks (not castling moves,
// promotions and en passant captures).
StateInfo st;
- Position p(pos);
- p.do_move(m, st);
- if (p.is_check())
- san += p.is_mate()? "#" : "+";
+ pos.do_move(m, st);
+ if (pos.is_check())
+ san += pos.is_mate() ? "#" : "+";
+ pos.undo_move(m);
return san;
}
assert(pos.is_ok());
MovePicker mp = MovePicker(pos, MOVE_NONE, OnePly, H);
+ Bitboard pinned = pos.pinned_pieces(pos.side_to_move());
// Castling moves
if (movestr == "O-O-O" || movestr == "O-O-O+")
{
Move m;
while ((m = mp.get_next_move()) != MOVE_NONE)
- if (move_is_long_castle(m) && pos.pl_move_is_legal(m))
+ if (move_is_long_castle(m) && pos.pl_move_is_legal(m, pinned))
return m;
return MOVE_NONE;
{
Move m;
while ((m = mp.get_next_move()) != MOVE_NONE)
- if (move_is_short_castle(m) && pos.pl_move_is_legal(m))
+ if (move_is_short_castle(m) && pos.pl_move_is_legal(m, pinned))
return m;
return MOVE_NONE;
return AMBIGUITY_NONE;
MovePicker mp = MovePicker(pos, MOVE_NONE, OnePly, H);
+ Bitboard pinned = pos.pinned_pieces(pos.side_to_move());
Move mv, moveList[8];
int n = 0;
while ((mv = mp.get_next_move()) != MOVE_NONE)
- if (move_to(mv) == to && pos.piece_on(move_from(mv)) == pc && pos.pl_move_is_legal(mv))
+ if (move_to(mv) == to && pos.piece_on(move_from(mv)) == pc && pos.pl_move_is_legal(mv, pinned))
moveList[n++] = mv;
if (n == 1)