Correct answer: Qb51...Bb2+[a] 2.B:b2#[A] 1...Rc6+/[б]/ 2.N:c6#[Б] 1...Bd4 2.Nd3# 1...Ng4/Nf1/Nf3 2.Nf3# 1...R:f5 2.Qe6#/Q:f5# 1...Rf7/R