Correct answer: Bf21...Ke1 2.Kc2# 1.Bd4?? zz 1...Ke1 2.Kc2# but 1...Kd2! 1.Bc5?? zz 1...Ke1 2.Kc2# but 1...Kd2! 1.Bb6?? zz 1...Ke1 2
