By The Times Mind Games, .
By Schwarz, Catherine
By Limited, Telegraph Group
By Stibbs, Anne
By Coleman, J.A.
By Stephenson, Hugh, Hugh Stephenson
By Fritz Spiegl
By Massingham, H.W., etc.
By Soanes, Catherine
By Igloo Books
By Compiled By Barbour Staff
By Howard-Williams, Jeremy
By The Times Mind Games
By The Puzzle Society
By Tim Moorey
By Ken Russell, Philip J. Carter
By Telegraph Media Group
By Dr Gareth Moore
By The Times Mind Games, John Grimshaw
By Elizabeth Jewell, Derek Jewell
By Daily Mail