Sudoku No Four In A Row - 200 Easy To Medium Puzzles 8X8 (Volume 1)

No Four in a Row is played on a grid of irregular shape. Some cells of the grid contain 'X' and 'O'. The task is to fill in the grid so that four consecutive identical symbols never appear in any row, column or diagonal.

• • Author: Dart Veider
• • Publisher: CreateSpace Independent Publishing Platform
• • Publication Date: Apr 19, 2017
• • Number of Pages: 136 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1545425876
• • ISBN-13: 9781545425879