const Score QueenOnPawnBonus = make_score( 4, 20);
const Score RookOpenFileBonus = make_score(43, 21);
const Score RookHalfOpenFileBonus = make_score(19, 10);
const Score QueenOnPawnBonus = make_score( 4, 20);
const Score RookOpenFileBonus = make_score(43, 21);
const Score RookHalfOpenFileBonus = make_score(19, 10);
// Penalty for a bishop on a1/h1 (a8/h8 for black) which is trapped by
// a friendly pawn on b2/g2 (b7/g7 for black). This can obviously only
// Penalty for a bishop on a1/h1 (a8/h8 for black) which is trapped by
// a friendly pawn on b2/g2 (b7/g7 for black). This can obviously only