chess-bot/values.cpp at master · arijit91/chess-bot · GitHub

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// Using values from http://chessprogramming.wikispaces.com/Simplified+evaluation+function
// And from http://www.chessbin.com/post/Piece-Square-Table.aspx

int piece_values[13] = {100, 315, 325, 500, 900, 100000, -100, -315, -325, -500, -900, -100000, 0};

int pawn_table[64] = {
   0,  0,  0,  0,  0,  0,  0,  0,
  45, 50, 40, 50, 50, 40, 45, 45,
  15, 35, 20, 30, 30, 20, 35, 15,
   5, 15, 10, 27, 27, 10, 15,  5,
   0,  0,  0, 25, 25,  0,  0,  0,
   5, -5,-10,  0,  0,-10, -5,  5,
   5, 10, 10,-25,-25, 10, 10,  5,
   0,  0,  0,  0,  0,  0,  0,  0
};

int knight_table[64] = {
  -50,-40,-30,-30,-30,-30,-40,-50,
  -40,-20,  0,  0,  0,  0,-20,-40,
  -30,  0, 10, 15, 15, 10,  0,-30,
  -30,  5, 15, 20, 20, 15,  5,-30,
  -30,  0, 15, 20, 20, 15,  0,-30,
  -30,  5, 10, 15, 15, 10,  5,-30,
  -40,-20,  0,  5,  5,  0,-20,-40,
  -50,-40,-20,-30,-30,-20,-40,-50,
};

int bishop_table[64] = {
  -20,-10,-10,-10,-10,-10,-10,-20,
  -10,  0,  0,  0,  0,  0,  0,-10,
  -10,  0,  5, 10, 10,  5,  0,-10,
  -10,  5,  5, 10, 10,  5,  5,-10,
  -10,  0, 10, 10, 10, 10,  0,-10,
  -10, 10, 10, 10, 10, 10, 10,-10,
  -10,  5,  0,  0,  0,  0,  5,-10,
  -20,-10,-40,-10,-10,-40,-10,-20,
};

int king_table[2][64] = {
  {
    -30, -40, -40, -50, -50, -40, -40, -30,
    -30, -40, -40, -50, -50, -40, -40, -30,
    -30, -40, -40, -50, -50, -40, -40, -30,
    -30, -40, -40, -50, -50, -40, -40, -30,
    -20, -30, -30, -40, -40, -30, -30, -20,
    -10, -20, -20, -20, -20, -20, -20, -10,
     20,  20,   0,   0,   0,   0,  20,  20,
     20,  50,  10,   0,   0,  10,  50,  20
  },
  {
    -50,-40,-30,-20,-20,-30,-40,-50,
    -30,-20,-10,  0,  0,-10,-20,-30,
    -30,-10, 20, 30, 30, 20,-10,-30,
    -30,-10, 30, 40, 40, 30,-10,-30,
    -30,-10, 30, 40, 40, 30,-10,-30,
    -30,-10, 20, 30, 30, 20,-10,-30,
    -30,-30,  0,  0,  0,  0,-30,-30,
    -50,-30,-30,-30,-30,-30,-30,-50
  }
};