Correct answer: Kg81...Kh6 2.Nf7# 1...h5 2.Q:e6# 1.Qe4+?? 1...Kh6 2.Q:h7# but 1...Kh5! 1.N:e6+?? 1...Kh6 2.Bf8#/Qg5# but 1...Kf7! 1.