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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. Each title also contains 300 puzzles.
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Black Belt Sudoku (R), Michael Rios
- Language
- Released
- 2005
- product-detail.submit-box.info.binding
- (Paperback)
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- Title
- Black Belt Sudoku (R)
- Language
- English
- Authors
- Michael Rios
- Publisher
- Union Square & Co.
- Released
- 2005
- Format
- Paperback
- ISBN10
- 1402735987
- ISBN13
- 9781402735981
- Category
- Hobby and Home
- Description
- 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. Each title also contains 300 puzzles.