Hard Sudoku Book For Adult

There are plenty of puzzles to enjoy in this jumbo compilation, with 2 different levels of difficulty, which makes it suitable for advanced and expert sudoku players in love with this super addictive game:
50 Hard puzzles for advanced players or strong intermediates50 Expert problems which will give your brain a real challengeThis book with hundreds of hours of fun inside makes a great gift!
We've had your entertainment and convenience in mind when designing this book and thought about the small details which make a difference:
Wide center margins making it easier to work on the puzzles when you open or fold the bookThis also makes it easy to tear out the pages if you want toBigger font and better quality paper than newspapers and magazines - easy to read and write on without worry of bleed throughProblem levels has been expertly assessed for consistency6 problems per page and answers at the end of the book