Correct answer: Nd21.Nf6? zz 1...d:c5[a] 2.Re4#[C] 1...K:c5/[б]/ 2.Be3#[Б] 1...d:e5[c] 2.Rc4#[A] but 1...K:e5! 1.Rf5?? (2.Rc4#[A]) but 1...d:c5[a]! 1.Nc3?? zz