Correct answer: Rc3+1.Qe4? (2.Qc2#[A]) but 1...K:a4! 1.Qe2? (2.Qc2#[A]/Qd1#[Б]) but 1...K:a4! 1.Qe1? (2.Qd1#[Б]) but 1...K:a4! 1.Qd6? (2.Qd1#[Б])