??? These puzzles will entice the novice, enthrall the casual player and tax the expert ??? Puzzles are linked to keeping your brain healthy, improving mental agility and staving off the brain???s ageing process ??? Contains over 200 puzzles ??? From the publishers of The Little Book of Sudoku range, which sold over 1 million copies across the series. ABOUT THE BOOK Over 200 new Sudoku puzzles to challenge, exercise your brain and improve your mental agility. Fiendishly addictive and great fun, Sudoku looks simple but can be wickedly tricky. Solve the puzzles in this book exercise your mind and enjoy the satisfaction!