Big Book of Sudoku-1000 puzzles-Hard level: soduko for adults, Tons of Challenge for your Brain! (Paperback) (ISBN-13: 9798509376498)

This 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 book


• This also makes it easy to tear out the pages if you want to


• Bigger font and better quality paper - easy to read and write on without worry of bleed-through


• Problem levels have been expertly assessed for consistency


• 6 problems per page and answers at the end of the book