Correct answer: Rff11...Rg6/Rg5/Rg4/Rg3/R:g2/Rg8/Rf7/Rh7 2.Qd2# 1...B:e2 2.K:e2# 1...B:c2 2.O-O# 1.B:g7?? (2.Qd2#) 1...B:c2 2.O-O#
