Correct answer: Bb41...c5 2.Qf4#[A] 1...e5 2.Qb4#[Б] 1.Be3+? 1...K:e3 2.Qf4#[A] 1...Kc3 2.Qb4#[Б] but 1...N:e3! 1.Bc3+? 1...Ke3 2.Qf4#[A] 1
