Correct answer: Nd21...R:c3 2.R:c3# 1...R:c8/R:e8 2.Nf5# 1.Nf2+?? 1...Kd2 2.N:b3# but 1...R:f2! 1.Nd2! (2.Qe2#) 1...K:d2 2.N:b3# 1