Correct answer: Kg71...Kf5 2.Qe4# 1.Kh7?? zz 1...Kh5 2.Nf6# but 1...Kf5! 1.Nf4?? zz 1...Kh4 2.Qh3# but 1...Kf5! 1.Ne1?? zz 1...Kf5 2
