Binary Puzzles - 200 Hard to Expert 9x9 vol. 3

Each cell should contain a zero or a one. No more than two similar numbers below or next to each other are allowed. Each row and each column is unique and contains as many zeros as ones.

• • Author: James Lee
• • Publisher: CreateSpace Independent Publishing Platform
• • Publication Date: Apr 30, 2018
• • Number of Pages: 116 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1717564941
• • ISBN-13: 9781717564948