Correct answer: Bf41...Kf5[a] 2.Q:g4#[A] 1...Kd5/[б]//f5[c] 2.Q:h1#[Б] 1...Bf3[d] 2.Q:d3#[C] 1.Nc5+? 1...Kf5[a] 2.Q:g4#[A] 1...Kd5/[б]/ 2.Q:h1#[Б] but 1