Correct answer: Kh5-g6 1.Kh5-g6 ! danger: 2.Qf7*h7 # 2.Qf7-g7 # 1...Bd6-e5 2.Qf7*h7 # 1...Bd6-f8 2.Qf7*h7 # 1...Nh7-