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