Correct answer: Bf11...R:h2 2.Q:h2# 1...B:g4 2.O-O-O# 1...B:e2 2.K:e2# 1.Bg3?? (2.O-O-O#/Bf2#) 1...R:h2 2.O-O-O#/Q:h2# 1...B:e2 2.K:e2#/Bf2# but
