Correct answer: Ne51...Nb4/Nc1/Nc3 2.Qc3# 1.Rd7+?? 1...Ke3 2.Qf2# but 1...N:d7! 1.Ne5! (2.Qf2#) 1...Ke3 2.Nc6# 1...Kc5 2.Rd7#