book of sudoku easy to very hard: four Puzzle Per Page - Easy, Medium, Hard and very hard Large Print Puzzle Book For Adults (Puzzles & Games for Adul - Paperback

by Esland Press (Author)

Sudoku puzzle - one of the best brain trainers! Proven fact that solving puzzles trains your brain and improves concentration and memory.
The Big book of Sudoku will help you with this!
The Big Book of Sudoku:
Is suitable for any level: from beginner to Sudoku expert
Lots of Sudoku puzzles: 300puzzles which include 100 Easy, 52 medium, 48 hard,50 very hard
Large font and space in the margins for your convenience
MAKES A GREAT GIFT: Great Gift for Sudoku lover