Hard Sudoku: Sudoku Puzzle Book - VOL. 4 - - 900 Challenging Sudoku Puzzles -

By: Publishing, Spinox

The first in our new series of only the toughest puzzles for serious sudoku solvers

Do you have what it takes? These 900 challenging sudoku puzzles from Spinox Publishing will keep your mind sharp

Features:
- 900 hard puzzles with answers.
- Big grids for easy solving.

• Format: Paperback
• Language: English
• ISBN: B08HT5636J
• ISBN13: 9798684971204
• Release Date: January 1
• Publisher: Independently Published
• Length: 302 Pages
• Weight: 1.55 lbs.
• Dimensions: 0.6" x 8.5" x 11.0"