Number Galore For Adults To Explore | 240 Sudoku Puzzle Books Hard Edition

Hard Sudoku games require more time thinking and planning. Come up with a good strategy to follow and stick to it. To come up with a strategy, you will have to do a lot of brain conditioning through trial and error. Are you up for it? If you are, then here's the book to begin with!

• | Author: Puzzle Therapist
• | Publisher: Puzzle Crazy
• | Publication Date: Sep 20, 2017
• | Number of Pages: 166 pages
• | Language: English
• | Binding: Paperback/Mathematics
• | ISBN-10: 1541941535
• | ISBN-13: 9781541941533