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/* GNU Chess 5.0 - eval.h - evaluation symbolic definitions
Copyright (c) 1999-2002 Free Software Foundation, Inc.
GNU Chess is based on the two research programs
Cobalt by Chua Kong-Sian and Gazebo by Stuart Cracraft.
GNU Chess 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 2, or (at your option)
any later version.
GNU Chess 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 GNU Chess; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Contact Info:
bug-gnu-chess@gnu.org
cracraft@ai.mit.edu, cracraft@stanfordalumni.org, cracraft@earthlink.net
*/
#ifndef EVAL_H
#define EVAL_H
/****************************************************************************
*
* The various evaluations constants.
*
****************************************************************************/
#define OPENING (phase <= 2)
#define ENDING (phase >= 6)
#define TRADEPIECE 4
#define TRADEPAWNS 8
#define HUNGPENALTY -20
#define ROOKMOVED -20
#define KINGMOVED -20
#define NOTCASTLED -8
#define PFACTOR 550
#define EARLYMINORREPEAT -7
/***********/
/* Pawns */
/***********/
#define EIGHT_PAWNS -10
#define STONEWALL -10
#define LOCKEDPAWNS -10
#define EARLYWINGPAWNMOVE -6
#define EARLYCENTERPREPEAT -6
#define BACKWARDPAWN -(8+phase)
#define DOUBLEDPAWN -(8+phase)
#define PAWNBASEATAK -18
#define BLOCKDEPAWN -48 /* -12 */
#define CONNECTEDPP 50
#define PAWNNEARKING 40
#define ATAKWEAKPAWN 2
#define FIANCHETTO_TARGET -13
/*************/
/* Knights */
/*************/
#define KNIGHTONRIM -13
#define OUTPOSTKNIGHT 10
#define PINNEDKNIGHT -30
#define KNIGHTTRAPPED -250
/*************/
/* Bishops */
/*************/
#define DOUBLEDBISHOPS 18
#define OUTPOSTBISHOP 8
#define FIANCHETTO 8
#define GOODENDINGBISHOP 16
#define BISHOPTRAPPED -250
#define PINNEDBISHOP -30
/***********/
/* Rooks */
/***********/
#define ROOK7RANK 30
#define ROOKS7RANK 30
#define ROOKHALFFILE 5
#define ROOKOPENFILE 6
#define ROOKBEHINDPP 6
#define ROOKINFRONTPP -10
#define PINNEDROOK -50
#define ROOKTRAPPED -10
#define ROOKLIBERATED 40
/***********/
/* Queen */
/***********/
#define EARLYQUEENMOVE -40
#define QUEENNEARKING 12
#define PINNEDQUEEN -90
#define QUEEN_NOT_PRESENT -25
/**********/
/* King */
/**********/
#define KINGOPENFILE -10
#define KINGOPENFILE1 -6
#define ATAKKING 10
#define DEFENDKING 6
#define HOPEN -600
#define GOPEN -30
#define KING_DEFENDER_DEFICIT -50
#define KING_BACK_RANK_WEAK -40
#define RUPTURE -20
#endif /* !EVAL_H */
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