Correct answer: Nd41.f8B?? zz 1...Kf4 2.Bd6# but 1...Kf6! 1.f8N?? zz 1...Kf6 2.Qe6# 1...Kd6 2.Qc7#/Qc5#/Qe6# but 1...Kf4! 1.Rg5+??