if (is_box_type(y, x, pawn_array, black)) {
set_pawn(y, x, white, pawn_array);
} else if (is_box_type(y, x, pawn_array, white)) {
if (is_box_type(y, x, pawn_array, black)) {
set_pawn(y, x, white, pawn_array);
} else if (is_box_type(y, x, pawn_array, white)) {