Grab this great collection of classic Sudoku puzzles, expertly crafted and graded.

There are plenty of puzzles to enjoy in this large compilation, with 2 different levels of difficulty, which makes it suitable for advanced and expert sudoku players in love with this super addictive game:

• 300 Hard puzzles for intermediate players or as a warm-up for experts
• 300 Expert problems which will give your brain a real challenge

This book with tons of hours of fun inside makes a great gift!

Great to relieve boredom and stress!

We've had your entertainment and convenience in mind when designing this book and thought about the small details which make a difference:

• Wide inner margins making it easier to work on the puzzles when you open or fold the book
• This also makes it easy to tear out the pages if you find this more convenient
• Bigger font and better quality paper than newspapers and magazines - easy to read and write on without worry of bleed through
• Problem levels has been expertly assessed for consistency
• 6 problems per page and answers at the end of the book
• Includes a FREE Bonus book you can download