Very Hard Sudoku X Puzzle Book for Adults: 250 Very Hard Sudoku For Advanced Players (Paperback) (ISBN-13: 9798698985105)

250 excellent puzzle 9x9 at the level of Very Hard. All riddles have only 1 solution. 2 puzzles per page.The font size is correct, you will not have to strain your eyes when solving puzzles.For Advanced Players .High quality paper and print (all puzzles read well, easy to write with pen and pencil without worry of bleed-through).Sudoku X is based on the original Sudoku grid, with the same rules and numbers-1 to 9(no number may appear twice in any row or column and rectangles of 3x3).Sudoku X (Diagonal Sudoku) puzzles both diagonals must contain all digits from 1 to 9 precisely once

Author: Alena Gurin
ISBN-10: 8698985106
ISBN-13: 9798698985105
Publisher: Independently Published
Language: English
Published: 10/17/2020
Pages: 152
Format: Paperback
Weight: 0.47lbs
Size: 9.02h x 5.98w x 0.33d