Correct answer: Ng51...Kd3 2.Qd5# 1.Qe5+?? 1...Kd3 2.Qd5#/Nc5# but 1...K:e5! 1.Qc5+?? 1...Kd3 2.Qc4#/Qd5# but 1...K:e4! 1.Nd2?? (2