The Ultimate Challenge Sudoku Puzzle Book Grab this massive bargain bonanza of classic Sudoku puzzles of varying difficulty levels, expertly crafted and graded. There are plenty of puzzles to enjoy in this jumbo compilation, with 2 different levels of difficulty, which makes it suitable for intermediate and advanced sudoku players in love with this super addictive game: 500 Medium puzzles for intermediate players or as a warm up for experts 500 Hard problems which will give your brain a real challenge This book with hundreds of hours of fun inside makes a great gift! We've had your entertainment and convenience in mind when designing this book and thought about the small details which make a difference: Wide center margins making it easier to work on the puzzles when you open or fold the book This also makes it easy to tear out the pages if you want to Bigger font and better quality paper than newspapers and magazines - easy to read and write on without worry of bleed through Problem levels has been expertly assessed for consistency 6 problems per page and answers at the end of the book Includes a FREE Bonus book Your brain will thank you!

Our skill levels are accurate (we worked hard at this)!Bigger print than in most newspapers and magazines (and with better paper).Wide inner margins make it easy to tear out the puzzles for convenience.

Sudoku is the new number puzzle craze sweeping the nation, and Sudoku X is the only puzzle collection to add diagonal play to the Sudoku formula.

You don't need to be a math whiz to enjoy a great sudoku puzzle! Sharpen your mind and have some fun with this great collection of sudokus, including over 540 challenges across four difficulty levels (Warm-Up, Challenging, Tough, and the ultimate Samurai Sudoku!) A must-have for all Sudoku enthusiasts. OVER 500 PUZZLES & SOLUTIONS: Hours of fun and entertainment to enjoy! VARIETY OF LEVELS: From levels 1 to 3 increasing levels of difficulty including Warm Up, Challenging and Tough. When you are done, test your skills on the ultimate Samurai Sudoku Puzzle - 5 puzzles linked together by a central puzzle! Can you become a master samurai? LAY FLAT: Spiral-bound lays flat for ease of use at home or on the go. Whether your drinking your morning coffee, riding on the train or relaxing on vacation this sudoku book can go with you. MAKES A GREAT GIFT: For the sudoku puzzle lover, this books makes a great gift for any occasion! Birthday, stocking suffers, road trip or more, everyone will love it! BRAIN BUSTERS(TM) Part of the Brain Busters Puzzle Collection from Parragon & Cottage Door Press. Look for other books including word finds, crosswords, picture puzzles, and more.

Also the puzzle may contain the regions of random (irregular) shape; this variant is called Jigsaw Sudoku

The ideal Sudoku gift for puzzle lovers, this beautiful, vintage Sudoku collection is packed with 150 classic brain-bending logic puzzles. Sudoku has never been more beautiful! A refreshing change from typical logic puzzle collections, this gifty Sudoku book features a stylish, ornate theme in a stunning yet portable package, inspired by vintage French signage. With a variety of levels and colorful numbered squares for contrast, this book is both an intellectual and visual pleasure to solve your way through. Whether you pack your puzzles to take on your commute or display this gorgeous collection on your coffee table to enjoy from the comfort of your own couch, this puzzle book will beat screen fatigue and keep your mind sharp.