Correct answer: Bb41...Bb4/Ra3 2.Q:b7# 1.Bb6?? (2.Q:b7#) but 1...R:b6! 1.Qd6?? (2.Qb8#) but 1...Be5! 1.Qe5?? (2.Qb8#) but 1...B:e5! 1.B