Correct answer: Qf31...Kg6 2.Qf5# 1...h5 2.Qg3# 1.Bg7?? zz 1...h5 2.Qg3# but 1...Kg6! 1.Ke4?? zz 1...Kg6/Kf6 2.Qf5# but 1...h5! 1.Ke6?? zz