The Evolution of Sudoku: Over 75 Hard Sudoku Number Puzzles

By June Blanchard

The name Sudoku comes from Japan . Su means number. Doku means single. However, not started in Japan. Sudoku originated in Switzerland. Traveled to Japan by way of America. The main idea is to have numbers 1 - 9 visible only once in a linear column.Many find Sudoku puzzles can engage a player in a hypnotic state using the brain connection. No math involved. Just a good way to relax and use your mind at the same time. Many claim Sudoku Improves concentration as well.

• Format: Paperback
• Language: English
• ISBN: 1694880915
• ISBN13: 9781694880918
• Release Date: September 2019
• Publisher: Independently Published
• Length: 102 Pages
• Weight: 0.57 lbs.
• Dimensions: 0.2" x 8.5" x 11.0"