Correct answer: Bc61...Kf4 2.Qg3# 1.Kb6?? zz 1...Kf4 2.Qg3# but 1...e6! 1.Kb8?? zz 1...Kf4 2.Qg3# but 1...e6! 1.Ka7?? zz 1...Kf4 2.Qg3# b
