Publisher's Synopsis
Challenge your brain with these 100 extremely hard Sudoku puzzles. They are suitable for Sudoku experts and and make a great gift! Also great for traveling due to the smaller size.
Product details:- 100 extremely hard Sudoku puzzle
- One puzzle per page!
- Solutions are included at the end of the book
- Small size: 6 x 9 in
- Shiny, flexible and durable cover