Correct answer: f4+1...Kf4 2.Bc7# 1.Kd7?? zz 1...Kf4 2.Bc7# 1...Kf6 2.Bc3# but 1...Kd4! 1.f4+! 1...K:f4 2.Bc7# 1...Kf6 2.Bd8# 1..
