Brain games - relax and solve sudoku - 200 Puzzles: volume 2; This book includes the following levels; Easy, Medium, hard and very difficult. (Paperback)

Santana presents the largest book of mind training for Sudoku.

To get enough of Sudoku? This book is yours! It contains 200 hard,
hard Sudoku gas in a book.

Features:

200 of Sudoku gas

1. 50 Easy
   
2. 50 Medium
   
3. 50 Hard
   
4. 50 Very Hard