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BadFish/src/search.h
Joona Kiiski fa49311b36 Implemented perft
Patch from Joona with extension to benchmark and inclusion
of Depth(0) moves generation by me.

Note that to test also qsearch and in particulary checks
generations a change in the end condition is needed.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-11-01 17:05:00 +01:00

76 lines
1.9 KiB
C

/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2009 Marco Costalba
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Stockfish is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(SEARCH_H_INCLUDED)
#define SEARCH_H_INCLUDED
////
//// Includes
////
#include "depth.h"
#include "move.h"
////
//// Constants
////
const int PLY_MAX = 100;
const int PLY_MAX_PLUS_2 = 102;
const int KILLER_MAX = 2;
////
//// Types
////
/// The SearchStack struct keeps track of the information we need to remember
/// from nodes shallower and deeper in the tree during the search. Each
/// search thread has its own array of SearchStack objects, indexed by the
/// current ply.
struct SearchStack {
Move pv[PLY_MAX_PLUS_2];
Move currentMove;
Move mateKiller;
Move threatMove;
Move killers[KILLER_MAX];
Depth reduction;
void init(int ply);
void initKillers();
};
////
//// Prototypes
////
extern void init_threads();
extern void stop_threads();
extern bool think(const Position &pos, bool infinite, bool ponder, int side_to_move,
int time[], int increment[], int movesToGo, int maxDepth,
int maxNodes, int maxTime, Move searchMoves[]);
extern int perft(Position &pos, Depth depth);
extern int64_t nodes_searched();
#endif // !defined(SEARCH_H_INCLUDED)