Story : Magnus Magnusson returns to interrogate the first four contenders for the title of Mastermind 1991. The black chair is to be found this week in the Great Hall of the University of Exeter. Contestants: James Fane-Gladwin (executive search consultant) Benedictine Order to 1532; Robin Rhoderick-Jones (retired soldier) The Archers; Christine Roderick (mature student) life and works of George Eliot ; Ian Sadler (computer analyst) British battleships, 1860-1956.