Development of the World Chess Championship five incredibly close world championship matches, the World Chess Championship 1984 (controversially terminated without result with Karpov leading +5 -3 =40), World Chess Championship 1985 (in which Kasparov won the title, 13–11), World Chess Championship 1986 (narrowly won by Kasparov, 12½–11½), World Chess Championship 1987 (drawn 12–12, Kasparov retaining the title), and World Chess Championship 1990 (again narrowly won by Kasparov, 12½–11½). In 1993, Kasparov and challenger Nigel Short complained of corruption and a lack of professionalism within FIDE and split from FIDE to set up the Professional Chess Association (PCA), under whose auspices they held their match. FIDE and
Women's World Chess Championship 1972 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. This was the third (and last) consecutive title match between the two strongest female players of their time. For the first time, the women's championship cycle consisted of all the same stages as the open cycle. An Interzonal tournament was held in Ohrid in May 1971, featuring the best players from each FIDE zone, for a total of 18 participants. The top three would qualify for the Candidates Tournament. The top three from the Interzonal