Correct answer: Qb51...Ne6/Nf7/Nc6/Nb7 2.Qc6# 1...Nb2/Nb6/Nc3/Nc5 2.Qc5# 1.Qc3?? zz 1...Kd5 2.Qd3# 1...Ne6/Nf7/Nc6/N