Correct answer: b8N1...Kf4 2.Bh2# 1...Kd4 2.f4# 1.b8Q?? zz 1...Kf4 2.Bh2# 1...Kf6 2.Qh8# 1...Kd4 2.f4# but 1...Kd6! 1.Kg7?? zz 1...K
