Correct answer: Rc21...K:b1[a] 2.O-O# 1...R:g5/Rg7/Rg8/Rf6/Re6/Rd6/Rc6/Rb6/Ra6/Rh6 2.Ra2# 1.Qf7? (2.Qa2#) 1...K:b1[a] 2.O-O# but 1.
