Correct answer: O-O1.B:f5+? 1...Ke3[a] 2.Qf2#[A] 1...Kd5/[б]/ 2.Qd8#[Б] but 1...K:f5! 1.Rc4+?? 1...Ke3[a] 2.Bc1#/Qf2#[A] but 1...Kd5/[б]/! 1.