100 Extremely Hard Sudoku Puzzles for On The Go: Suitable for Sudoku Experts / Great for Traveling /Includes Solutions

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

We from "Sharpened Pencil Press" love puzzles in all forms and sizes to keep our brains active and happy. We hope you enjoy our books and have much fun solving them Check out our other Sudoku and puzzle books