A selection of advanced puzzles, including Spot-the-Difference, Missing Word, Silhouette, Sudoku, Kakuro, etc.
Tim Dedopulos is an author, puzzle setter and editor. He worked for Wizards of the Coast and White Wolf, and has written role-playing games and fiction. He wrote The Ultimate 1001 Puzzle Book and The Greatest Puzzles Ever Solved (both Carlton). He lives in central London. Matthew Donegan is a puzzle compiler and checker based in London.