Correct answer: Qh81...Kc3 2.Nd5# 1...Kd4 2.Ne2# 1.Nf8?? zz 1...Kc3 2.Nd5# but 1...Kd4! 1.Nb6+?? 1...Kc3 2.Nfd5# but 1...Kd4! 1.N