The Hard to Extreme Sudoku Puzzle Book: 120 Large-Print Puzzles Volume 1 (Paperback) (ISBN-13: 9798670098632)

The Hard to Extreme Sudoku Puzzle Book (Volume 1)

Sudoku is not only a placement game that brings us lots of fun, but also a great brain exercise

that helps strengthen our mind and boost memory.

In this compact size book, you can play 120 large-print sudoku puzzles with increasing complexity level:

30 hard puzzles,

30 a bit harder puzzles,

30 much harder puzzles,

and 30 extreme puzzles.

This is a great gift for anyone who loves challenging sudoku puzzles, especially those with eyesight problems.