With a separate sudoku book for every level, this work helps puzzle lovers play this popular game. Taking a page from karate - another Japanese art, each title is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. Each book includes 300 puzzles.

Binding Type: Paperback
Publisher: Puzzlewright
Published: 11/01/2005
ISBN: 9781402737152
Pages: 192
Weight: 0.56lbs
Size: 8.18h x 5.35w x 0.58d