(Paperback)

A massive 300 killer sudoku puzzles packaged in a stylish paperback - this is the perfect killer sudoku gift book for adults of any age. With a mix of 100 easy, 100 medium and 100 hard puzzles, the 9 x 9 grids are each arranged on their own page and solutions are easily found in the back of the book. Printed in a highly portable format.

(Paperback)

A massive 300 sudoku puzzles packaged in a stylish paperback - this is the perfect sudoku gift book for adults of any age. With a mix of 100 easy, 100 medium and 100 hard puzzles, the 9 x 9 grids are each arranged on their own page and solutions are easily found in the back of the book. Printed in a highly portable format.

(Paperback)

A massive 300 deadly killer sudoku puzzles packaged in a stylish paperback - this is the perfect gift book for the avid killer sudoku fan. The 9 x 9 sudoku grids are each arranged on their own page and solutions are easily found at the back of the book. Printed in a highly portable format.

(Paperback)

(Paperback, New edition)

With five difficulty levels ranging from beginner to extreme, this selection includes helpful hints to get you started and online links for those who just can't get enough.

(Paperback)

(Paperback)

200 super fiendishlyhard sudoku puzzles packaged in a stylish paperback - this is the perfect book for the avid sudoku fan. The 9 x 9 sudoku grids are each arranged on their own page and solutions are easily found at the back of the book. Printed in a highly portable format.

(Paperback)

(Paperback)

200 deadly killer sudoku puzzles packaged in a stylish paperback - this is the perfect book for the avid killer sudoku fan. The 9 x 9 sudoku grids are each arranged on their own page and solutions are easily found at the back of the book. Printed in a highly portable format.

(Hardback)

Banish boring bathroom visits for good with this cheeky sudoku puzzle book from the bestselling author of 52 Things to Do While You Poo. Whether you're a curious beginner or a master of the grid, these conundrums will suit anyone who likes to take the focus away from the task in hand and will keep you puzzling for hours.

(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)

A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard puzzles in this latest collection so you can gauge your progression through the difficulty levels. Are you ready for the test

(Paperback)

A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard puzzles in this latest collection so you can gauge your progression through the difficulty levels. Are you ready for the test

(Paperback)

A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard puzzles in this collection so you can gauge your progression through the levels.

(Paperback)

Challenge yourself to some fun with over 100 brain games that will test your skills and build on them.

(Paperback)

(Paperback)

Are you a KenKen expert Then see if you have the skills to handle these high-level puzzles!

(Paperback)

In the tradition of beloved, geeky game kits like Punderdome and STET! Dreyer's English, this companion book-and-game kit to Ben Orlin's bestselling Math Games with Bad Drawings comes complete with everything necessary to play 34 fun, challenging, meaningful math games anytime, anywhere. Perfect for ages 10 and up.

(Paperback, New Edition)

More than 200 never-before-seen Killer Sudoku of a progressive level of difficulty, complete with an introduction and full solutions.

(Paperback, New Edition)

More than 200 never-before-seen Sudoku of a progressive level of difficulty, complete with a number of variations on the traditional Sudoku puzzle, an introduction and full solutions.

(Paperback)

This book consists of 200 difficult puzzles of a variety of different types focussing on maths and numerical reasoning. Questions include mathematical grid puzzles such as killer Sudoku and numerical crosswords, as well as maths-based logic and pattern puzzles. Puzzle artworks and full-colour illustrations are included throughout.

(Paperback)

Sudoku is a real cultural phenomenon: a French fad in the 1890s, a Japanese craze in the 1980s, it is peculiarly British obsession. This book contains 201 fiendish brainteasers, ranging from easy to mind-bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices. It's more than a game.

(Paperback)

Looking for something challenging but not impossible, something to bump up your kakuro technique This title presents medium-hard "green" puzzles that are just right for honing intermediate skills.