return b & (b - 1);
}
-/// Counts the occupation of the bitboard depending on the occupation of SQ_A1
-/// as in `b & (1ULL << SQ_A1) ? more_than_two(b) : more_than_one(b)`
-
-constexpr bool conditional_more_than_two(Bitboard b) {
- return b & (b - 1) & (b - 2);
-}
constexpr bool opposite_colors(Square s1, Square s2) {
return (s1 + rank_of(s1) + s2 + rank_of(s2)) & 1;