Correct answer: Ba21...B:c5[a] 2.Rc4#[A] 1...B:a3/[б]/ 2.Rb3#[Б] 1.K:e6? zz 1...B:c5[a] 2.Rc4#[A] 1...B:a3/[б]/ 2.Rb3#[Б] but 1...Kd4! 1.Kf4? zz