Nastiest Sudoku Book Ever

Only diehards need apply These incredibly difficult sudoku are made to challenge even the most expert solver...and strain their brains to bursting. Each puzzle requires upper-level strategies that have been honed to perfection from regular practice. Designed by powerhouse sudoku creator Frank Longo, they'll have dedicated fans tearing their hair out-and loving every moment. This is a bind-up of books 2, 3, and 4 our four-part Absolutely Nasty sudoku series.

Even more interaction--this time used in combination with other procedures...and a lot more heavily than in the first book.

Run for cover, because Mutant Sudoku is on the loose! Thomas Snyder and Wei-Hwa Huang are both U.S. Sudoku Champions, and they’ll have you filling in grids of all shapes and sizes, testing parts of your logical mind that have never been tested before. You will marvel at the ingenuity within these pages, and after experiencing the power of these Mutant Sudoku, normal 9 x 9 puzzles will never seem the same again.

Brain Games - Relax and Solve: Take a break, relax, and do a little puzzling. Sudoku puzzles are fun and engaging, while providing your brain a little stimulation! Product Details: Premium matte finish cover design Perfect for all writing mediums Portable format 5.0" x 8.0" (12.5cm x 20cm) pages Wide inner margins make it easy to tear out the puzzles for convenience. 100 total puzzles.

Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This is the book that challenges skilled solvers and Sudoku-lovers at the top level—every one of the 320 puzzles is rated "difficult." Good luck!

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

Badass Sudoku, 6 Times the Pain is a collection of 250 puzzles featuring six styles of Sudoku puzzles: Classic, Irregular, Multi, Odd/Even, Diagonal, and Sum. Within each style, there are three levels of difficulty clearly marked on each page Easy, Medium, and Hard. Conceptis Puzzles created these to challenge all levels of players those new to the popular puzzle craze and those who have already become hooked. Badass Sudoku will provide hours of entertainment while testing your skill and strategies.

200+ supercharged Sudoku to test your skills--and boost your brainpower! Whether you're already a pro or you're looking to build your abilities, The Toughest Sudoku Puzzle Book will challenge and entertain you with hours of mind-bending fun. Of all the Sudoku puzzle books, this one's action-packed with 240 clever, creative Sudoku puzzles, plus complete explanations of 14 fail-proof solving techniques to guarantee your success. Unlike standard Sudoku puzzle books, this book contains 18 variations to keep your brain engaged and your pencil sharp. Difficulty increases throughout, culminating in a bonus chapter that will stretch the minds of even the most advanced players. Finally, a helpful hints section provides 3 clues per puzzle to get you over any hurdle. This extraordinary standout among Sudoku puzzle books includes: Level up--Test your problem-solving skills with three epic levels of difficulty, including tough, tougher, and even tear-your-hair-out! Vexing variety--Tackle a wide range of Sudoku types like Twodoku, Jigsaw, Nonconsecutive, and Samurai, which you won't find in other Sudoku puzzle books. Secrets revealed--Discover how to play smarter with 14 basic, intermediate, and advanced techniques designed for Sudoku puzzle books players of all levels. Since it's one of the most challenging Sudoku puzzle books on the planet, this book will blow your mind!