Correct answer: Ne71.Nb4? (2.Nc6#[A]) but 1...Be4! 1.Nb6? (2.Nc8#[Б]) but 1...Bf5! 1.Nc3?? (2.Nb5#) but 1...Bd3! 1.Ne7! (2.Nc6#[A]/Nc8#[Б])