Correct answer: Qa51.N:f6? zz 1...Kf4 2.Qe3#[A] 1...K:f6 2.Qe7#[Б] but 1...h5! 1.Be6? zz 1...Ke4 2.Qe3#[A] 1...K:e6 2.Qe7#[Б] but 1...f5! 1.N