Correct answer: Kb81...Ke4 2.Qe3# 1...Kf6 2.Qg7# 1.Bg5?? zz 1...Ke4 2.Qe3# but 1...Kd6! 1.Qd7?? zz 1...Kf6 2.Qg7# but 1...Ke4! 1.Q