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If you are looking for an easy challenge or a real head scratcher, you won't be disappointed with this collection of more than 450 sudoku puzzles spread over five levels, from beginner to expert.
Author Bio
Eric Saunders is a prolific writer of non-fiction for children and adults, specialising in puzzle and activity books. He has been compiling puzzles for over 35 years, and his work can be found in books, newspapers and websites around the world. He lives in Wales.