500 Extremely Hard Sudoku Puzzles: Solving these puzzles is not hard, it's extremely difficult. Solutions are included. | Expert Level | For Adults

By Sudoku Belt

Spoil Yourself With The Most Challenging Sudoku Puzzles You Have Seen!

• Format: Paperback
• Language: English
• ISBN: B084WJL823
• ISBN13: 9798614813277
• Release Date: February 2020
• Publisher: Independently published
• Length: 108 Pages
• Dimensions: 11.0" x 0.3" x 8.5"