Correct answer: f61...K:g4 2.Qg1# 1...Kf6 2.Qe7# 1.Ne4+?? 1...K:g4 2.Qh3# but 1...K:h6! 1.Nf7+?? 1...K:g4 2.Qh3# but 1...Kf6! 1.R