Correct answer: Bb61...R:a5/Ra7/Ra8 2.Nb6#/Nf6# 1...Rb6 2.N:b6# 1...Rf6 2.N:f6# 1...Nb4/Nc1/Nc3 2.Nc3# 1...Bg5/Bh6/B:e3 2.Q