Correct answer: Rb81...Nd8 2.e:d8Q#/e:d8R# 1.Rd8+?? 1...K:e7 2.f8Q# but 1...N:d8! 1.Ra8?? (2.f8N#) 1...K:e7 2.f8Q# 1...Qf6/Qf5/Q<