Correct answer: O-O-O1...Kb4 2.Na6# 1...Bc7/Bd8/Ba7 2.Rb5# 1...Ne3/Nf4/Nf6/Nc3/Nc7/Nb4 2.Q:e7# 1.R:b6?? (2.Nd7#/Rb5#) 1...