400 Sudoku for adults: Hard Sudoku 9x9

By robert salt

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1. 400 Hard Sudoku puzzles for hours of enjoyment.

2. All of the puzzles are large enough to be comfortably completed.

3. It is aimed toward the advanced players and can make us smarter.

4. Easy-to-read format.

If you are the kind of person who doesn't give up easily, then this Sudoku Book of Hard Sudoku puzzles is for you. The puzzles are for people who either want to progress in developing their skills in Sudoku. This Sudoku book will provide you with rest, color your leisure time, transform your free time into relaxation, give rest from every day to your mind, develop memory, develop logical thinking and concentration of attention. This set of pocket-size puzzles is great for people who want to get their heads out of a screen and do some real pencil-and-paper work Hardest Sudoku makes an excellent gift for Sudoku players of all levels.

Enjoy your quiet time with a book of Sudoku. Get a copy today.

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• Format: Paperback
• Language: English
• ISBN: B08DBY32VJ
• ISBN13: 9798667869122
• Release Date: July 2020
• Publisher: Independently Published
• Length: 232 Pages
• Weight: 0.70 lbs.
• Dimensions: 0.5" x 6.0" x 9.0"