Big Book Sudoku X - 500 Hard Puzzles 9x9 (Volume 4)

By Dart Veider

Sudoku X also called Diagonal Sudoku.
Each puzzle consists of a 9x9 grid containing given clues in various places.
The object is to fill all empty squares so that the numbers 1 to 9 appear exactly once in each row, column, diagonal and 3x3 box.

The puzzle books series contain:
- 500 Hard Puzzles
- Handy 6 x 9 inch Book Layout
- 6 Puzzles per Page
- Ideal for Experts

The book is for those who like logic and math problems. Decide, developing and improving.

• Format: Paperback
• Language: English
• ISBN: 1727484568
• ISBN13: 9781727484564
• Release Date: September 2018
• Publisher: Createspace Independent Publishing Platform
• Length: 130 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"