Correct answer: Kf51.Kf4?? (2.Qe8#/Qh6#/Qf7#) 1...Nf6 2.Qf7# 1...Nf8 2.Qh6# but 1...N:g5! 1.Kf5! (2.Qe8#/Qg6#/Qh6#/Qf7#) 1...N<