Square loserKSq = pos.king_square(weakerSide);
Square bishopSquare = pos.piece_list(strongerSide, BISHOP, 0);
- if (same_color_squares(bishopSquare, SQ_A1))
+ // kbnk_mate_table() tries to drive toward corners A1 or H8,
+ // if we have a bishop that cannot reach the above squares we
+ // mirror the kings so to drive enemy toward corners A8 or H1.
+ if (!same_color_squares(bishopSquare, SQ_A1))
{
winnerKSq = flop_square(winnerKSq);
loserKSq = flop_square(loserKSq);