"Candidates Tournament" . . "1990 World Championship match" . "1990" . "1988\u20131990 tournament in St John" . . "the 1988 Candidates' matches" . . "In 1987" . "1990 World Chess Championship" . "World Chess Championship 1990" . "1988 Candidates Tournament" . . "World Chess Championship Interzonal tournament" . "World Chess Championship 1990" . "1990 match" . . "world championship match against Kasparov in 1990" . "1987\u201390" . . "1990 Classical Chess World Championship" . . "World Chess Championship Interzonal Tournament" . . .