Correct answer: Qb21...Kd5[a] 2.Ra5#[A] 1...Kf4/[б]/ 2.Qe3#[Б] 1...d5[c] 2.Qc7#[C] 1...Kf6 2.Q:d4# 1.Ra4? (2.Q:d4#) 1...Kd5[a] 2.Ra5#[A] 1...Kf4/