World Chess Championship a Kasparov match, either with 2002 FIDE champion Ponomariov, or 2004 FIDE champion Kasimdzhanov. Partly due to his frustration at the situation, Kasparov retired from chess in 2005, still ranked No. 1 in the world. Soon after, FIDE dropped the short knockout format for a World Championship and announced the FIDE World Chess Championship 2005, a double round robin tournament to be held in San Luis, Argentina between eight of the leading players in the world. However Kramnik insisted that his title be decided in a match, and declined to participate. The tournament was convincingly won by the Bulgarian Veselin
Women's World Chess Championship 1981 Women's World Chess Championship 1981 The 1981 Women's World Chess Championship was won by Maia Chiburdanidze, who successfully defended her title against challenger Nana Alexandria after a closely fought match, which ended in an 8-8 tie. Like the previous one, this championship cycle contained two Interzonal tournaments, held in Rio de Janeiro in September and Alicante in October 1979, featuring the best players from each FIDE zone. A total of 35 players took part, with the top three from Rio (17 players) and the top four from Alicante (18 players) qualifying for the Candidates Tournament. Ioseliani won convincingly in Rio,