World Chess Championship 1990 World Chess Championship 1990 The World Chess Championship 1990 was played between Garry Kasparov and Anatoly Karpov. It was the fifth and final Kasparov–Karpov championship match, Kasparov winning by a single point. Three Interzonals were held in the summer of 1987, with 16 to 18 players playing in each and the top three scorers from each qualifying. In the first tournament in Subotica, Sax, Short, and Speelman qualified. Lubomir Kavalek withdrew after six rounds; his results are not included in the totals for the other players. Robert Hübner was invited, but declined to participate. As a result, Ribli had a
World Chess Championship 1981 and successfully defended his title as world champion. World Chess Championship 1981 The 1981 World Chess Championship was played between Anatoly Karpov and Viktor Korchnoi in Merano, Italy from October 1 to November 19, 1981. Karpov won. Two Interzonals were held in 1979, one in Riga and the other in Rio de Janeiro. The Riga interzonal was won in dominant fashion by Tal, who went through the tournament undefeated ahead of Polugaevsky. They were joined in the Candidates Tournament by Adorján, whose better tie-break score in the main tournament put him ahead of Ribli, after the two drew a playoff