2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
6 Stockfish is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 Stockfish is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #if !defined MOVEPICK_H_INCLUDED
21 #define MOVEPICK_H_INCLUDED
29 /// MovePicker class is used to pick one pseudo legal move at a time from the
30 /// current position. The most important method is next_move(), which returns a
31 /// new pseudo legal move each time it is called, until there are no moves left,
32 /// when MOVE_NONE is returned. In order to improve the efficiency of the alpha
33 /// beta algorithm, MovePicker attempts to return the moves which are most likely
34 /// to get a cut-off first.
38 MovePicker& operator=(const MovePicker&); // Silence a warning under MSVC
41 MovePicker(const Position&, Move, Depth, const History&, Search::Stack*, Value);
42 MovePicker(const Position&, Move, Depth, const History&, Square);
43 MovePicker(const Position&, Move, const History&, PieceType);
47 void score_captures();
48 void score_noncaptures();
49 void score_evasions();
57 Square recaptureSquare;
58 int captureThreshold, phase;
59 MoveStack *curMove, *lastMove, *lastQuiet, *lastBadCapture;
60 MoveStack moves[MAX_MOVES];
63 #endif // !defined(MOVEPICK_H_INCLUDED)