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Title: Sort of a letdown in the Martial Arts Sudoku series
Review: I'm going through the entire "karate sudoku" series, and completed the 3rd degree green belt book, whose grids were designed by Longo and were much more challenging. This book is fun, but not nearly as difficult as the title would imply. I solved most of these grids in five mins or less, most of which involved little or no abstract logic. Beginners will enjoy this one. Those looking for a more serious challenge should skip this book and move on to the 2nd degree brown.
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