Correct answer: Nb71...Nd6 2.Qc6# 1...Ne3 2.Ng3# 1...Ne5/e5 2.Nf6# 1...Nb2 2.Qb7#/Qc6# 1...Nb6/Na5 2.Qd3# 1...Nc2/Nd3/Na2/Na6 2.
