Sudoku Variations Puzzle Book : 100 Sudoku Stress Relief Puzzles

Sukaku ("Suuji Kakure"; also known as "Pencilmark Sudoku") has 81 groups of digits in a 9 x 9 grid. Like a standard sudoku, the puzzle must be completed in such a way that each row, each column and each 3 x 3 box contains digits 1 through 9. Only the candidates shown in the grid can be used.

• | Author: Fumiko Kawai
• | Publisher: Independently Published
• | Publication Date: May 29, 2018
• | Number of Pages: 115 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1983029718
• | ISBN-13: 9781983029714