Correct answer: Ne51...Kc5 2.Ba7# 1...K:a5 2.Bc7# 1.Bd6?? zz 1...K:a5 2.Bc7# but 1...Ka7! 1.Be5?? zz 1...Kc5 2.Bd4# 1...K:a5 2.Bc7
