Correct answer: Rf11...Nf5 2.Nf3# 1.Qg7+?? 1...Kf4 2.Rf1# but 1...Nf6! 1.Rf1! (2.Qf4#) 1...K:d4 2.Q:d6# 1...Ne4 2.Nc6# 1...Nf5
