Correct answer: Ra51...Nd2/Na3 2.N:c3# 1...f3 2.Ng3# 1.e:f6?? (2.Bf5#) but 1...Nd6! 1.Rd4+?? 1...K:e5 2.e:f4# but 1...K:e3! 1.Rb5?? zz 1...Nd2
