Correct answer: Bg41...Nf6/Nc3/Nc7/Nb4 2.R:f6# 1.Rf6+?? 1...Nf4 2.R:f4# but 1...N:f6! 1.Bf3?? (2.Ra1#) 1...e2 2.Bg2# but 1...Nc3!