Correct answer: Nb61...B:c3 2.N:c3# 1...Nf6 2.Q:e6# 1.Ne7?? (2.Qf4#) 1...Be5 2.Qc6# 1...Rf6/Ne5 2.Qd4# 1...Ne3 2.Rf4# but 1...e5!
