Correct answer: Qb21...b:a4[a] 2.R:c5#[A] 1...b4/[б]/ 2.Qd3#[Б] 1.Ra6?? zz 1...b4/[б]/ 2.Qd3#[Б] but 1...b:a4[a]! 1.Ra7?? zz 1...b4/[б]/ 2.Qd3#[Б] but 1...b:a4[a]! 1.Ra8?
