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Dr. Gareth Moore

Dr Gareth Moore is the author of over 100 puzzle and brain-training books for both children and adults, including The Mammoth Book of Brain Games , The Mammoth Book of New Sudoku and The Ordnance Survey Puzzle Book . He is also the creator of the daily brain-training website BrainedUp.com, and runs popular puzzle site PuzzleMix.com. Find him online at DrGarethMoore.com