Correct answer: Nf51.Qg5+? 1...Kc4[a] 2.Qc5#[C] 1...Ke4/[б]/ 2.Qe5#[Б] but 1...K:d4! 1.Ne6? zz 1...Kc4[a] 2.Nb6#[A] 1...Ke4/[б]/ 2.Nf6#[D] but 1