Correct answer: Na71...a:b5[a] 2.Nb7#[A] 1...Re6/[б]//Re5/Re4/Ref7/Rg7/Rh7 2.Qd8#[Б] 1...d4 2.Nc4# 1...Rf3/Rf5/Rf6/Rff7/Rf8 2.Qe1# 1...