Correct answer: Nb21...Ne7/Nf6/Ndc7/Nb4/Nb6 2.Qd4#[A] 1...Nd:c3/Nb:c3 2.B:c3# 1...Nbc7/Nd4/Na3/Na7 2.Q:c7#[Б] 1...Nd6 2.Qg7# 1.
