<prompt> Pedzisa mutsara unotevera: Akapihwa zita reInternational Arbiter, aive Head Referee mu  <response>: 23rd Chess Olympiad, uye mu 8th Womens Chess Olympiad, zvose zviri muBuenos Aires 1978. Akanga ariwo mutongi mukuru paWorld Chess Championship rematch pakati paAnatoly Karpov naViktor Korchnoi paMerano 1981. 