Correct answer: Bc71...K:b6 2.Bd4# 1.Kc7?? (2.Ne6#) but 1...d4! 1.Rc3+?? 1...K:b6 2.Bd4# but 1...Nc4! 1.Ne4+?? 1...Kc4 2.Rc3# 1...K: