Correct answer: Nc71.Nb4? (2.Qd5#[A]/Qe6#[Б]) 1...Ke5/d5 2.Qd5#[A] but 1...Kf5[a]! 1.Nf4? (2.Qe6#[Б]) 1...Kf5[a] 2.Qd5#[A] but 1...d5! 1.Nc5+??