"If you have to ask, IT'S TOO HARD FOR YOU"--Cover.

SUDOKU: The hotter-than-hot puzzle phenomenon that everyone wants to play! Sudoku’s everywhere these days, and winning millions of converts worldwide. And why not? It’s irresistibly good brainteasing entertainment, the rules are simple (even when the particular game isn’t), and it requires no math skills…just logic. Sterling has a book for everyone eager to get in on the game, no matter what level. There are puzzle collections to keep sudoku lovers occupied for hours, guides to strategy for the perplexed, series that take solvers from novice to expert, and compilations packaged in fun shapes. “The new international craze!”—The New York Times “Puzzle fans are playing the numbers with sudoku...the underlying complexity is what attracted millions worldwide.”—USA Today “People are wild about it...”—Sherry Stern of the Los Angeles Timees

With every puzzle requiring upper-level strategies, this collection packs even more of a punch than Beyond Black Belt Sudoku. You'll encounter common advanced techniques with curious-sounding names like Sashimi X-Wing, Swordfish, and Gordonian Polygon, as well as some tricky new things, including Grouped X-Cycle and 3D Medusa. The puzzles grow increasingly difficult as the book goes along, from "pretty darn hard" to "excruciating."

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 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.

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!

Watch out--these sudoku might crush even the most stalwart of solvers!

For confident players only!

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.

With a separate sudoku book for every level, this work helps puzzle lovers play this popular game. Taking a page from karate - another Japanese art, each title 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 book includes 300 puzzles.

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 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.