(Paperback)

The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. Part of the "Absolutely Nasty Sudoku" series, this book features basic and intermediate puzzles and techniques.

(Paperback)

Suitable for puzzle lovers, this title includes 300 puzzles.

(Paperback)

Go way beyond difficult, with the hardest, most brain-busting sudoku you've ever seen!

(Paperback, Reissue ed.)

Sudoku fans keep an eagle eye out for fresh formats featuring their favorite puzzlesand these 210 sudoku spice up the mix by changing the standard 9 x 9 puzzles to 10 x 10. So solvers get 100 squares (not 81), and numbers that go from zeronot oneto nine. Plus, many of the grids feature bigger 5 x 2 boxes or random shapes for extra fun.

(Paperback)

The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. Part of the "Absolutely Nasty Sudoku" series , this book provides basic and intermediate puzzles and techniques.

(Paperback)

The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. Part of the "Absolutely Nasty Sudoku" series, this book features basic and intermediate puzzles and techniques.

(Paperback)

The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. Part of the "Absolutely Nasty Sudoku" series, this book features basic and intermediate puzzles and techniques.

(Paperback)

(Paperback)

(Paperback)

Sudoku super-master Frank Longo and mental_floss, the magazine for trivia lovers, bring fans a collection of superb puzzles sure to stimulate the brain. Longo's puzzles are always top-notch, and because these increase in difficulty as the book goes along, they're perfect for helping solvers build their skills.

(Paperback)

Taking a page from karate - another Japanese art - each title in the series 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.

(Paperback)

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.

(Paperback)

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.

(Paperback)

Bigger IS better! Created by one of the best puzzle makers in the business, this giant collection (more than 850 pages!) features hundreds and hundreds of sudoku. The puzzles range from easy to challenging, and offer a ton of fun for solvers of every level. With something this supersized, who needs any other sudoku book

(Hardback)

At 21 feet, 9 3/4 inches long, and with 8,929 empty squares to fill, this huge puzzle adds big excitement to the popular game - and is the perfect challenge for fans who find regular sudoku too easy. It's composed of 167 regular-sized (9x9) puzzles and each individual sudoku's starting numbers are symmetrically placed in the puzzle.

(Paperback)

Suitable for puzzle lovers, this title includes 300 puzzles.

(Paperback)

Suitable for puzzle lovers, this title includes 300 puzzles.

(Paperback)

Suitable for puzzle lovers, this title includes 300 puzzles.

(Paperback)

If youre a beginner, or could use a little brush-up, Sudoku U: Freshman Year is for you. Here are 300 gentle puzzles, none of which require upper-level solving techniques to conquer. Grab a pencil and give your brain a stretch.

(Paperback)

Youre almost ready to graduate! If youre looking for very hard puzzles, youll find them in Sudoku U: Senior Year. Every one of these 300 logical conundrums requires upper-level solving techniques.