Correct answer: Rg61.Kf7[A]? (2.Rc8#[Б]) but 1...b2! 1.Rc8[Б]? (2.Kf7#[A]) but 1...b2! 1.Rc7?? (2.Rc:h7#/Rh:h7#) but 1...Bb1! 1.Rg4?? (2.Rg8#) but 1...b2!
