This week's knockout chess game is a highly intriguing dash between two experts who specialise in the same opening -the fashionable Modern Defence. One has written two best-sellers on this opening, and the other used it to win the Junior Championship of Europe and so became the world's youngest-ever International Master. George Botterill
1975 British Champion v
John D. Nunn
Junior Champion of Europe Presenter JEREMY JAMES
Director john WILCOX
Producer ROBERT TONER