Correct answer: f41...Kd4 2.Qd6# 1.Q:c6+?? 1...Kd4 2.Qd6#/Qd5# but 1...K:c6! 1.Bd3?? zz 1...Kd4 2.Qd6# but 1...Kd5! 1.Be2?? zz 1...<