Correct answer: Nc81.Kf4+?? 1...Kd4 2.Nb5# but 1...Kd6! 1.Nc8! (2.Qe4#) 1...Kc6 2.Qb5# 1...Be5 2.Qc4# 1...Bd4 2.Kf4# 1...Nc5 2.
