Correct answer: Nf4+1...K:f6[a] 2.Rb6#[A] 1.d8N+? 1...K:f6[a] 2.Rb6#[A] 1...Ke5/[б]/ 2.Rb5#[Б] but 1...Kd5! 1.Bf7+? 1...K:f6[a] 2.Rf2#[D] 1..