 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 in format to that in use by FIDE at the time.