Description
Brain Games Sudoku Medium Difficulty Puzzles, Paperback by Senor Sudoku, ISBN 1645214028, ISBN-13 9781645214021, Like New Used, Free shipping in the US If you've been doing beginner Sudoku for some time, then you should level up. Do medium difficulty Sudoku next! Sudoku is a wonderful exercise that trains your brain to understand symbols and crack codes. It also helps you to break free from your routine and even find your flow. Use this Sudoku puzzl today.