With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game thats appearing in major newspapers all over! Taking a page from karate-another Japanese art-each title is graded by color- White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.

Barnes & Noble Brown Belt Sudoku by Michael Rios

At home, while commuting, during lunch hours, people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked- by different colored belts. This is the White Belt volume, a great introduction for anyone who wants to find the perfect beginner's challenge. It's impossible to complete only one sudoku at a time, because solving them is habit-forming.

Barnes & Noble White Belt Sudoku by Michael Rios

At home, while commuting, during lunch hours, people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked- by different colored belts. This is the Black Belt volume, filled with puzzles that will provide a sly, absorbing test for even the best, most proficient experts. It's impossible to complete only one sudoku at a time, because solving them is habit-forming.

Barnes & Noble Black Belt Sudoku by Michael Rios

Everyone loves sudoku puzzles, finding them impossible to put down. The only problem- having enough sudokus to solve! Created in the United States, these addictive conundrums were originally called Number Place puzzles until their recent rise in popularity in Japan, where the name translated as sudoku. However, in a true sudoku, unlike a Number Place puzzle, the grids are symmetrical. This trait makes for a more elegant solve. Every puzzle included inside is symmetrical, which is not always the case in other sudoku books. In this Martial Arts Sudoku series, we've indicated the skill level necessary to complete each book in the same way Japanese karate levels are ranked- by different colored belts. This is the Second-Degree Black Belt volume, filled with puzzles that will provide a sly, absorbing test for even the best, most proficient experts. You'll go crazy for these super engaging brain bafflers.

Barnes & Noble Second-Degree Black Belt Sudoku by Frank Longo

Are you a sudoku warrior? Now you have an incredible opportunity to reach elite status and bask in the glory of completing some of the hardest sudoku ever constructed. For diehards only! These incredibly difficult puzzles are handcrafted for the sudoku warrior who dares to go where other solvers fear to tread. So, if you're armed with the highest-level strategies, get ready for the most satisfying fight your life. It's the most challenging sudoku book we've ever published.

Barnes & NobleBrown Belt Sudoku by Michael Rios

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Barnes & Noble Brown Belt Sudoku by Michael Rios