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) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, 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
#include "types.h"
Value PieceValue[PHASE_NB][PIECE_NB] = {
-{ VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
-{ VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg } };
+ { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
+ { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg }
+};
namespace PSQT {
// 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.
-const Score Bonus[][RANK_NB][int(FILE_NB) / 2] = {
+constexpr Score Bonus[][RANK_NB][int(FILE_NB) / 2] = {
{ },
{ // Pawn
- { S( 0, 0), S( 0, 0), S( 0, 0), S( 0, 0) },
- { S(-16, 7), S( 1,-4), S( 7, 8), S( 3,-2) },
- { S(-23,-4), S( -7,-5), S( 19, 5), S(24, 4) },
- { S(-22, 3), S(-14, 3), S( 20,-8), S(35,-3) },
- { S(-11, 8), S( 0, 9), S( 3, 7), S(21,-6) },
- { S(-11, 8), S(-13,-5), S( -6, 2), S(-2, 4) },
- { S( -9, 3), S( 15,-9), S( -8, 1), S(-4,18) }
+ { 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(-143, -97), S(-96,-82), S(-80,-46), S(-73,-14) },
- { S( -83, -69), S(-43,-55), S(-21,-17), S(-10, 9) },
- { S( -71, -50), S(-22,-39), S( 0, -8), S( 9, 28) },
- { S( -25, -41), S( 18,-25), S( 43, 7), S( 47, 38) },
- { S( -26, -46), S( 16,-25), S( 38, 2), S( 50, 41) },
- { S( -11, -55), S( 37,-38), S( 56, -8), S( 71, 27) },
- { S( -62, -64), S(-17,-50), S( 5,-24), S( 14, 13) },
- { S(-195,-110), S(-66,-90), S(-42,-50), S(-29,-13) }
+ { S(-169,-105), S(-96,-74), S(-80,-46), S(-79,-18) },
+ { S( -79, -70), S(-39,-56), S(-24,-15), S( -9, 6) },
+ { S( -64, -38), S(-20,-33), S( 4, -5), S( 19, 27) },
+ { S( -28, -36), S( 5, 0), S( 41, 13), S( 47, 34) },
+ { S( -29, -41), S( 13,-20), S( 42, 4), S( 52, 35) },
+ { S( -11, -51), S( 28,-38), S( 63,-17), S( 55, 19) },
+ { S( -67, -64), S(-21,-45), S( 6,-37), S( 37, 16) },
+ { S(-200, -98), S(-80,-89), S(-53,-53), S(-32,-16) }
},
{ // Bishop
- { S(-54,-68), S(-23,-40), S(-35,-46), S(-44,-28) },
- { S(-30,-43), S( 10,-17), S( 2,-23), S( -9, -5) },
- { S(-19,-32), S( 17, -9), S( 11,-13), S( 1, 8) },
- { S(-21,-36), S( 18,-13), S( 11,-15), S( 0, 7) },
- { S(-21,-36), S( 14,-14), S( 6,-17), S( -1, 3) },
- { S(-27,-35), S( 6,-13), S( 2,-10), S( -8, 1) },
- { S(-33,-44), S( 7,-21), S( -4,-22), S(-12, -4) },
- { S(-45,-65), S(-21,-42), S(-29,-46), S(-39,-27) }
+ { 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) }
+ { S(-24, 0), S(-15, 3), S( -8, 0), S( 0, 3) },
+ { S(-18,-7), S( -5,-5), S( -1,-5), S( 1,-1) },
+ { S(-19, 6), S(-10,-7), S( 1, 3), S( 0, 3) },
+ { S(-21, 0), S( -7, 4), S( -4,-2), S(-4, 1) },
+ { S(-21,-7), S(-12, 5), S( -1,-5), S( 4,-7) },
+ { S(-23, 3), S(-10, 2), S( 1,-1), S( 6, 3) },
+ { S(-11,-1), S( 8, 7), S( 9,11), S(12,-1) },
+ { S(-25, 6), S(-18, 4), S(-11, 6), S( 2, 2) }
},
{ // Queen
- { S( 0,-70), S(-3,-57), S(-4,-41), S(-1,-29) },
- { S(-4,-58), S( 6,-30), S( 9,-21), S( 8, -4) },
- { S(-2,-39), S( 6,-17), S( 9, -7), S( 9, 5) },
- { S(-1,-29), S( 8, -5), S(10, 9), S( 7, 17) },
- { S(-3,-27), S( 9, -5), S( 8, 10), S( 7, 23) },
- { S(-2,-40), S( 6,-16), S( 8,-11), S(10, 3) },
- { S(-2,-54), S( 7,-30), S( 7,-21), S( 6, -7) },
- { S(-1,-75), S(-4,-54), S(-1,-44), S( 0,-30) }
+ { 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(291, 28), S(344, 76), S(294,103), S(219,112) },
- { S(289, 70), S(329,119), S(263,170), S(205,159) },
- { S(226,109), S(271,164), S(202,195), S(136,191) },
- { S(204,131), S(212,194), S(175,194), S(137,204) },
- { S(177,132), S(205,187), S(143,224), S( 94,227) },
- { S(147,118), S(188,178), S(113,199), S( 70,197) },
- { S(116, 72), S(158,121), S( 93,142), S( 48,161) },
- { S( 94, 30), S(120, 76), S( 78,101), S( 31,111) }
+ { 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) }
}
};
PieceValue[MG][~pc] = PieceValue[MG][pc];
PieceValue[EG][~pc] = PieceValue[EG][pc];
- Score v = make_score(PieceValue[MG][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_H - file_of(s));
- psq[ pc][ s] = v + Bonus[pc][rank_of(s)][f];
+ 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];
}
}
projects / stockfish / blobdiff