Other 1970s controversies FIDE had a number of conflicts with the Soviet Chess Federation. These conflicts included:[24]
The defection of grandmaster Gennadi Sosonko in 1972. The Soviets demanded that Sosonko be excluded from competitive chess, television or any other event that might publicize his defection. FIDE refused, and no Soviet players took part in the 1974 Wijk aan Zee tournament in The Netherlands because Sosonko was playing in it.
In 1976 world championship contender Viktor Korchnoi sought political asylum in The Netherlands. In a discussion a few days earlier Euwe told Korchnoi, "...of course you will retain all your rights ..." and later opposed Soviet efforts to prevent Korchnoi from challenging for Anatoly Karpov's title in 1978.
FIDE decided to hold the 1976 Chess Olympiad in Israel, which the Soviet Union did not recognize as a country.
Rapid expansion of membership During his period as president of FIDE (1970–1978) Max Euwe strove to increase the number of member countries, and Florencio Campomanes (president 1982–1995) continued this policy, with each member nation receiving one vote. Former world champion Anatoly Karpov later said this was a mixed blessing, as the inclusion of so many small, poor countries led to a "leadership vacuum at the head of the world of chess......"[24][26]Yuri Averbakh said the presence of so many weak countries made it easy to manipulate decisions[27] World Championship, 1983–1985 The events leading to Garry Kasparov's winning the world championship involved FIDE in two controversies. While arranging the Candidates Tournament semi-final matches to be played in 1983, FIDE accepted bids to host Kasparov versus Victor Korchnoi in Pasadena, California. The Soviet Union refused to accept this, either because it feared Kasparov would defect or because it thought Kasparov was the greater threat to reigning champion Anatoly Karpov. Their refusal would have meant that Kasparov forfeited his chance of challenging for the title. FIDE president Florencio Campomanes negotiated with the Soviet Union, and the match was played in London.[26][28] In the 1984 world championship match between Karpov and Kasparov the winner was to be the first to win six games. In the first 27 games Karpov gained a 5–0 lead but by the end of the 48th Kasparov had reduced this to 5–3.[29] At this point the match had lasted for 159 days (from September 1984 to February 1985). Then the match was ended without result by Florencio Campomanes, the President of the World Chess Federation, and a new match was announced to start a few months later. The termination was controversial, as both players stated that they preferred the match to continue.[30] Announcing his decision at a press conference, Campomanes cited the health of the players, which had been strained by the length of the match. Kasparov won the second match and became world champion.
In 1992 Nigel Short surprised the world by winning the Candidates Tournament and thus becoming the official challenger for Kasparov's world title. FIDE very quickly accepted a bid from Manchester (England) to host the title match in 1993. But at that time Short was travelling to Greece and could not be consulted as FIDE's rules required. On learning of the situation Short contacted Kasparov, who had distrusted FIDE and its president, Florencio Campomanes ever since Campomanes had stopped his title match against Karpov in 1984. Kasparov and Short concluded that FIDE had failed to get them the best financial deal available and announced that they would "play under the auspices of a new body, the "Professional Chess Association" (PCA). FIDE stripped Kasparov of his FIDE title and dropped Kasparov and Short from the official rating list. It also announced a title match between Karpov and Jan Timman, whom Short had defeated in the semi-final and final stages of the Candidates Tournament. Kasparov and Karpov won their matches and there were now two players claiming to be world champion.[33] In 1994 Kasparov concluded that breaking away from FIDE had been a mistake, because both commercial sponsors and the majority of grandmasters disliked the split in the world championship.[34] Kasparov started trying to improve relations with FIDE and supported Campomanes' bid for re-election as president of FIDE. But many FIDE delegates regarded Campomanes as corrupt and in 1995 he agreed to resign provided his successor was Kirsan Ilyumzhinov, president of the Republic of Kalmykia.[35] In the next few years several attempts to re-unify the world championship failed for various reasons – notably inability to finance a match or Kasparov's opposition to any plan that required him to play in a qualifying series rather than go straight into a re-unification match. In 2000 Vladimir Kramnik defeated Kasparov in a match for what was now the Braingames World Chess Championship (the PCA had collapsed by this time). But Kramnik was also unwilling to play in a qualifying series, and objected strongly to FIDE's attempt to have the world championship decided by annual knock-out tournaments and to reduce the time limits for games, changes which FIDE hoped would make the game more interesting to outsiders.[35][36] Finally in 2006 a re-unification match was played between Kramnik and Veselin Topalov, which Kramnik won after an unpleasant controversy which led to one game being awarded to Topalov.[35][37] But the split in the world title had after-effects, as shown by FIDE's complicated regulations for the 2007–9 world championship cycle. Because Topalov was unable to compete in the 2007 World Chess Championship Tournament, FIDE decided he should have a "fast track" entry into the 2007–2009 cycle. And FIDE also decided that, if Kramnik did not win the 2007 championship tournament, he should play a championship match in 2008 against the winner—and this provision became applicable because Viswanathan Anand won the tournament and thus became world champion.