Correct answer: Q:b61...Qe8[a] 2.Bd7#/B:e8#/N:b6#[A] 1...Nd1/[б]//Na4[c] 2.B:b5#[Б] 1...Bc3+ 2.R:c3# 1...Qb7/Qa7 2.B:b7# 1...Q:a8 2.Bb7#/B