Correct answer: Re11...c2[a] 2.Q:c2#[A] 1...R:e3/[б]/ 2.Qa6#[Б] 1...Rff4/R:f3/Rf6 2.Ne5#/Nb4#/Qa6#[Б] 1...Rfe5/Ree5/Rb4 2.N:e5#/Nb4# 1...R