Sudoku 50-50 Challenge Book #1 Hard: Can You Do 50 Hard Puzzles In 50 Days?

Challenge yourself to complete 50 hard Sudoku puzzles in 50 days or less. Can you do it?

• | Author: Mauricio Vergara
• | Publisher: CreateSpace Independent Publishing Platform
• | Publication Date: Aug 08, 2016
• | Number of Pages: 106 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 153696834X
• | ISBN-13: 9781536968347