Second-Degree Black Belt Sudoku (R)

Taking a page from karate - another Japanese art - each title in the series 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.

• | By (Author): Frank Longo
• | Series: Martial Arts Puzzles Series
• | Publisher: Sterling Publishing Co Inc
• | Publication Date: Nov 01, 2005
• | Country of Publication: United States
• | Number of Pages: 192 pages
• | Language: Not available
• | Binding: Paperback|Softback
• | ISBN-10: 1402737173
• | ISBN-13: 9781402737176