Sterling Entertainment Books - Third-Degree Black Belt Sudoku Activity Book
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Third-Degree Black Belt Sudoku Activity Book. With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over. Each title is graded by color, beginning with White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the most challenging. Includes 300 puzzlesWritten by Frank LongoMade in Canada



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