Correct answer: Rf61...Bc5 2.Nc7# 1...Bd4 2.Nf4# 1...Rc5 2.Nb4# 1.Q:b5+?? 1...Bc5 2.Nc7# but 1...K:e6! 1.Nc7+?? 1...Kc5 2.Q:b5# but
