Correct answer: Ne41...Kf4[a] 2.Qd6#[A] 1...Kd4/[б]/ 2.Qf6#[Б] 1.Kb4?? zz 1...Kf4[a] 2.Qd6#[A] 1...Kd4/[б]/ 2.Qf6#[Б]/Qd6#[A] but 1...b5! 1.K:b6?? zz
