Correct answer: Nd61...Kd5[a] 2.Qf7#[A] 1...Kd7/[б]/ 2.Qe8#[Б] 1...Be3[c] 2.Q:e4#[C] 1...Bf2/Bg1 2.R:e4#/Q:e4#[C] 1.R:e4+?? 1...Kd7/[б]/ 2.Qf5#