Story : Contenders from Glasgow, Edinburgh and Aberdeen strive for a place in the Mastermind semi-finals. To succeed they require the knowledge of the specialist, a wide range of general knowledge and the ability to think and act quickly under the pressure of time. Edinburgh University again provides the venue for tonight's contest. Contenders: ROBIN WALDEN, export manager Life and works of Michelangelo GAY SINCLAIR-GIEBEN, schoolmistress Scottish Wars of Independence 1306-1320 ALAN BRUFORD, archivist The Hebrides to 1914 MARTIN NICHOLS, retired neurosurgeon, Naval history 1793-1815