Correct answer: Na31...Nc3/Nb2 2.B:e3# 1...Nd7/N:b3/Nb7/Na6 2.f5# 1...Ne4 2.Nf5# 1...Ne6 2.N:c6# 1.Qc3+?? 1...N:c3 2.B:e3# but 1...