Function shakmaty::attacks::bishop_mask

pub fn bishop_mask(sq: Square) -> Bitboard

Gets the set of potential blocking squares for a bishop on sq.

Example

let mask = attacks::bishop_mask(Square::D5);
// 0 . . . . . 0 .
// . 1 . . . 1 . .
// . . 1 . 1 . . .
// . . . 0 . . . .
// . . 1 . 1 . . .
// . 1 . . . 1 . .
// 0 . . . . . 1 .
// . . . . . . . 0

assert_eq!(mask.count(), 9);