Correct answer: Nc81.Kh6?? zz 1...Kf6 2.Qe6# but 1...Kd6! 1.Nc4+?? 1...K:d5 2.Qf5# but 1...Kf6! 1.Bd3?? zz 1...Kf6 2.Qg7# but 1...Kd6!
