Correct answer: Qb41...Q:d4+[a] 2.N:d4#[A] 1...Q:f3+/[б]/ 2.R:f3#[C] 1...Qf5/Qc4[c]/Qc6/Qb7/Qa8 2.Q:f5#[Б] 1...Q:g5 2.Ng1#/N:g5#/Nh4#/Ne5#/