Correct answer: Nc31...Nd6/Ne7/Nb6/Na7 2.Re7# 1...Ng8/Nf5+/N:f7 2.Qf5# 1.Rfd7? (2.Re1#[Б]) 1...Ke6[a] 2.Qe4#[C] 1...Nd6 2.Re7#
