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 1972 were joined by Kushnir, the loser of the last championship match. These four players contested a knock-out series of matches to determine the challenger. Kushnir again prevailed, earning the right to another shot at Gaprindashvili's title. The championship match was played in Riga in 1972. This time, Kushnir came closer than ever to beating Gaprindashvili, but with draws in the last two games the defending champion managed to hang onto her title by one point. Women's World Chess Championship 1972 The 1972 Women's World Chess Championship was won by Nona Gaprindashvili, who successfully defended her title against challenger Alla Kushnir.