Sudoku Sujikai - 200 Hard To Master Puzzles

Sujikai (literally "diagonal") is a variation of Sudoku. The puzzle consists of a triangular grid of cells containing digits from 1 to 9. The objective is to fill a grid with digits so that each cell contains a digit and no digit is repeated in any column, row and diagonal in any direction. Also, no digit occurs twice in any of the three larger 3 x 3 square regions and any of the three larger triangular regions enclosed by thick borders.

• • Author: Dart Veider
• • Publisher: Createspace Independent Publishing Platform
• • Publication Date: Aug 28, 2018
• • Number of Pages: 136 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1726285677
• • ISBN-13: 9781726285674