Correct answer: Rf21...K:g1[a] 2.O-O-O# 1...Rc4/Rc3/R:c2/Rb5/Ra5/Rd5/Re5/Rf5/R:g5 2.Rh2# 1.Qb6? zz 1...K:g1[a] 2.O-O-O# 1...Rc4/R