Classical World Chess Championship 1995 and formed a rival organisation, the PCA (Professional Chess Association). In response, FIDE stripped Kasparov of his status and organised an event to determine a new champion — this event was won by Anatoly Karpov. Kasparov claimed that, as he had not been defeated by a challenger to his title in a match, and in fact had defeated the rightful challenger (Nigel Short in 1993), that he was still the reigning world champion. Thus, for the first time since the inaugural World Championship in 1886, there were two rival World Chess Championships. The PCA ran a world championship cycle similar
World Senior Chess Championship the men's section. So far one male World Chess Champion – Vasily Smyslov – has gone on to win the World Senior Championship as well (at age of 70 in 1991). He has also been the first Senior World Chess Champion ever. Nona Gaprindashvili is the only female World Chess Champion to obtain the World Senior title as well. The oldest World Senior Champion, male or female - before the split in two different age categories has been made - is Viktor Korchnoi who won the title at age of 75 and a half (in 2006, his only participation). Vlastimil