Correct answer: Ncb41...c5[a] 2.Ne5#[A] 1...d4/[б]/ 2.Na3#[Б] 1.Nc1? zz 1...c5[a] 2.Qd3#[F] 1...d4/[б]/ 2.Bb3#[E] but 1...Kc5! 1.Nce1?? zz 1...d4/[б]/ 2.Qc5#[C]