Correct answer: Qe21...Kc5[a] 2.Qe7#[A] 1.Qe4+? 1...Kc5[a] 2.Qe7#[A] 1...Ka3/[б]/ 2.N:b5#[C] 1...K:c3[c] 2.Qd4#[Б] but 1...K:a5! 1.Qf4+? 1...
