Correct answer: Q:e41.Qb7? (2.Qb1#[A]) but 1...Kf1! 1.Qh7? (2.Qh1#[Б]) but 1...Kd1! 1.Qf6?? (2.Qa1#) but 1...Kd1! 1.Qh4+?? 1...Kf1 2.Qh1#[Б]