Correct answer: Qh81...Ra8 2.Q:a8# 1.Qc8? (2.Qc6#[Б]) 1...Ra8 2.Q:a8# but 1...R:b7! 1.Qd8? (2.Qb6#[A]) 1...K:b7 2.Qc8# but 1...R:b7! 1.