There are other variations.
No. L
Q—KR 2K—B 3 or B4 Q—Q 6, ch.Q × Q Kt—K 5. double ch. mate.
There are other variations.
No. LI
R—QR sq.P moves R—R 2P × R P mates.
There are other variations.
Q—KR 2K—B 3 or B4 Q—Q 6, ch.Q × Q Kt—K 5. double ch. mate.
There are other variations.
R—QR sq.P moves R—R 2P × R P mates.