Correct answer: Rf51...Kd6 2.Qf6# 1...Rb6/Rb7/Rb8/Ra5/Rc5/Re5/Rf5 2.R:b6# 1.Qf7+?? 1...Kd6 2.Qf6# but 1...K:f7! 1.Rg6+??