Correct answer: Nf7+1...Kc3 2.Ne2# 1.Qd6+?? 1...Kc3 2.Ne2#/Q:c5# but 1...Ke4! 1.Nf3+?? 1...Ke4 2.Ng5# but 1...Kc4! 1.Nf7+! 1...K<