P604 CEEFAX 604 Thu 7 Oct 21:13/28   THURSDAY/FRIDAY  2000-0130  2000 WORLD CHESS More coverage of the Garry Kasparov-Nigel Short match 2030 THE MUSIC GAME N  Guests include Charles Kjnnjdy  and the Beverly Sisters 2100 CRITICAL EYE S  looks at the American and UN  involvement in the Gulf War 2200 FILM: THE BLACK MARBLE S Comedy when two unlikely  detectives are thrown together &5 0005 WORLD CHESS &5 Kasparov-Short round up &5 0040-0130 DISPATCHES Current affairs series  BBC1 601 C3 603 N = NICAM stereo & BBC2 602 Now 605 S = Subtitles 888 Now/Next BBC1 TV TV Extra Films