Correct answer: Kb21.Qe4? (2.Qb4#[A]) but 1...K:b6! 1.Qe7? (2.Qc5#[Б]/Qb4#[A]) but 1...K:b6! 1.Qg4? (2.Qb4#[A]) but 1...K:b6! 1.Qc8? (2.Qc5#[Б])
