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: Alexander Rodriguez
- | Publisher: CreateSpace Independent Publishing Platform
- | Publication Date: Apr 19, 2018
- | Number of Pages: 116 pages
- | Language: English
- | Binding: Paperback
- | ISBN-10: 171713517X
- | ISBN-13: 9781717135179