Sudoku Collection : 200 Hard Outside Sudoku Puzzles 9X9

Outside Sudoku is a variation of the standard sudoku. Some digits are given outside the grid.These digits must appear in the first three cells in the corresponding direction.

• | Author: Alena Gurin
• | Publisher: Independently Published
• | Publication Date: Sep 13, 2019
• | Number of Pages: 122 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 169290809X
• | ISBN-13: 9781692908096