2682: Exchanges – solution
The pairs of unclued lights (1 and 13; 15 and 11; 20 and 34; 25 and 39; 26 and 31/16 reversed) are literal anagrams of each other. First prize Justin Hughes, Petersfield, Hants Runners-up Jacqui Sohn, Gorleston, Norfolk; John Bennett, Havant, Hants
