mirror of
https://github.com/sockspls/badfish
synced 2025-05-02 01:29:36 +00:00
eed508b444
1/ eval margin and gains removed: 16bit are now free on TT entries, due to the removal of eval margin. may be useful in the future :) gains removed: use instead by Value(128). search() and qsearch() are now consistent in this regard. 2/ futility_margin() linear formula instead of complex (log(depth), movecount) formula. 3/ unify pre & post futility pruning pre futility pruning used depth < 7 plies, while post futility pruning used depth < 4 plies. Now it's always depth < 7. Tested with fixed number of games both at short TC: ELO: 0.82 +-2.1 (95%) LOS: 77.3% Total: 40000 W: 7939 L: 7845 D: 24216 And long TC ELO: 0.59 +-2.0 (95%) LOS: 71.9% Total: 40000 W: 6876 L: 6808 D: 26316 bench 7243575
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/*
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Stockfish, a UCI chess playing engine derived from Glaurung 2.1
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Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
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Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
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Stockfish is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Stockfish is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EVALUATE_H_INCLUDED
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#define EVALUATE_H_INCLUDED
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#include "types.h"
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class Position;
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namespace Eval {
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extern void init();
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extern Value evaluate(const Position& pos);
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extern std::string trace(const Position& pos);
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}
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#endif // #ifndef EVALUATE_H_INCLUDED
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