+++ /dev/null
-/*
- Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
-
- 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/>.
-*/
-
-#include <algorithm>
-
-#include "types.h"
-
-Value PieceValue[PHASE_NB][PIECE_NB] = {
- { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
- { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg }
-};
-
-namespace PSQT {
-
-#define S(mg, eg) make_score(mg, eg)
-
-// Bonus[PieceType][Square / 2] contains Piece-Square scores. For each piece
-// type on a given square a (middlegame, endgame) score pair is assigned. Table
-// is defined for files A..D and white side: it is symmetric for black side and
-// second half of the files.
-constexpr Score Bonus[][RANK_NB][int(FILE_NB) / 2] = {
- { },
- { // Pawn
- { S( 0, 0), S( 0, 0), S( 0, 0), S( 0, 0) },
- { S(-11,-3), S( 7, -1), S( 7, 7), S(17, 2) },
- { S(-16,-2), S( -3, 2), S( 23, 6), S(23,-1) },
- { S(-14, 7), S( -7, -4), S( 20,-8), S(24, 2) },
- { S( -5,13), S( -2, 10), S( -1,-1), S(12,-8) },
- { S(-11,16), S(-12, 6), S( -2, 1), S( 4,16) },
- { S( -2, 1), S( 20,-12), S(-10, 6), S(-2,25) }
- },
- { // Knight
- { S(-161,-105), S(-96,-82), S(-80,-46), S(-73,-14) },
- { S( -83, -69), S(-43,-54), S(-21,-17), S(-10, 9) },
- { S( -71, -50), S(-22,-39), S( 0, -7), S( 9, 28) },
- { S( -25, -41), S( 18,-25), S( 43, 6), S( 47, 38) },
- { S( -26, -46), S( 16,-25), S( 38, 3), S( 50, 40) },
- { S( -11, -54), S( 37,-38), S( 56, -7), S( 65, 27) },
- { S( -63, -65), S(-19,-50), S( 5,-24), S( 14, 13) },
- { S(-195,-109), S(-67,-89), S(-42,-50), S(-29,-13) }
- },
- { // Bishop
- { S(-49,-58), S(- 7,-31), S(-10,-37), S(-34,-19) },
- { S(-24,-34), S( 9, -9), S( 15,-14), S( 1, 4) },
- { S( -9,-23), S( 22, 0), S( -3, -3), S( 12, 16) },
- { S( 4,-26), S( 9, -3), S( 18, -5), S( 40, 16) },
- { S( -8,-26), S( 27, -4), S( 13, -7), S( 30, 14) },
- { S(-17,-24), S( 14, -2), S( -6, 0), S( 6, 13) },
- { S(-19,-34), S(-13,-10), S( 7,-12), S(-11, 6) },
- { S(-47,-55), S( -7,-32), S(-17,-36), S(-29,-17) }
- },
- { // Rook
- { S(-25, 0), S(-16, 0), S(-16, 0), S(-9, 0) },
- { S(-21, 0), S( -8, 0), S( -3, 0), S( 0, 0) },
- { S(-21, 0), S( -9, 0), S( -4, 0), S( 2, 0) },
- { S(-22, 0), S( -6, 0), S( -1, 0), S( 2, 0) },
- { S(-22, 0), S( -7, 0), S( 0, 0), S( 1, 0) },
- { S(-21, 0), S( -7, 0), S( 0, 0), S( 2, 0) },
- { S(-12, 0), S( 4, 0), S( 8, 0), S(12, 0) },
- { S(-23, 0), S(-15, 0), S(-11, 0), S(-5, 0) }
- },
- { // Queen
- { S( 0,-71), S(-4,-56), S(-3,-42), S(-1,-29) },
- { S(-4,-56), S( 6,-30), S( 9,-21), S( 8, -5) },
- { S(-2,-39), S( 6,-17), S( 9, -8), S( 9, 5) },
- { S(-1,-29), S( 8, -5), S(10, 9), S( 7, 19) },
- { S(-3,-27), S( 9, -5), S( 8, 10), S( 7, 21) },
- { S(-2,-40), S( 6,-16), S( 8,-10), S(10, 3) },
- { S(-2,-55), S( 7,-30), S( 7,-21), S( 6, -6) },
- { S(-1,-74), S(-4,-55), S(-1,-43), S( 0,-30) }
- },
- { // King
- { S(272, 0), S(325, 41), S(273, 80), S(190, 93) },
- { S(277, 57), S(305, 98), S(241,138), S(183,131) },
- { S(198, 86), S(253,138), S(168,165), S(120,173) },
- { S(169,103), S(191,152), S(136,168), S(108,169) },
- { S(145, 98), S(176,166), S(112,197), S(69, 194) },
- { S(122, 87), S(159,164), S(85, 174), S(36, 189) },
- { S(87, 40), S(120, 99), S(64, 128), S(25, 141) },
- { S(64, 5), S(87, 60), S(49, 75), S(0, 75) }
- }
-};
-
-#undef S
-
-Score psq[PIECE_NB][SQUARE_NB];
-
-// init() initializes piece-square tables: the white halves of the tables are
-// copied from Bonus[] adding the piece value, then the black halves of the
-// tables are initialized by flipping and changing the sign of the white scores.
-void init() {
-
- for (Piece pc = W_PAWN; pc <= W_KING; ++pc)
- {
- PieceValue[MG][~pc] = PieceValue[MG][pc];
- PieceValue[EG][~pc] = PieceValue[EG][pc];
-
- Score score = make_score(PieceValue[MG][pc], PieceValue[EG][pc]);
-
- for (Square s = SQ_A1; s <= SQ_H8; ++s)
- {
- File f = std::min(file_of(s), ~file_of(s));
- psq[ pc][ s] = score + Bonus[pc][rank_of(s)][f];
- psq[~pc][~s] = -psq[pc][s];
- }
- }
-}
-
-} // namespace PSQT
projects / stockfish / blobdiff