Correct answer: Kf6-f7 1.Kf6-f7 ! danger: 2.Qc3-c6 # 2.Qc3-c5 # 2.Qc3-c4 # 2.Qc3*f3 # 1...Bc1*d2 2.Qc3-c6 # 2.Q<