Give your logic skills a workout with the awesome Sudoku puzzles in this book, put together by puzzle master Gareth Moore. Forget your worries, pick up a pen, and focus on these challenging brain-teasers.
Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults, including best-selling Ordnance Survey Puzzle Book, Brain Games for Clever Kids and The Mammoth Book of New Sudoku.