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