Correct answer: Nh41...e3[a] 2.d4#[A] 1.Qc6? zz 1...e3[a] 2.d4#[A] 1...Kd4/[б]/ 2.Qc3#[Б] but 1...d4! 1.Qb6?? zz 1...e3[a] 2.d4#[A] but 1...d4! 1.Kg5?? zz 1...e3[a] 2.d4#[A]