Pedzisa mutsara unotevera: Muna 1992 akakunda Swedish Chess Championship. Karlsson akahwina menduru dzesirivha mumakwikwi enyika kaviri (1979, 1986) uye menduru yebronze kamwe (1976). Muna 1982 muLas Palmas akapinda mu
World Chess Championship Interzonal Tournament uye akaiswa panzvimbo yechi11.