Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese art - each title is graded by colour: White for easy, Green for medium, Brown for hard & Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! Intrigued by KenKen? Novices can tie on their white belts and begin their puzzle-solving journey here. But be warned: once you begin, you'll never want to stop! It includes 300 puzzles.

KenKen has quickly become the successor to sudoku that the world's been waiting for! KenKen became the first puzzles to be printed in the daily editions of the New York Times next to its famous crossword puzzle. This New York Times edition of KenKen contains 300 easy to hard 4x4 and 6x6 size puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. The puzzles use all four mathematical operations and increase in difficulty like they do in the Times.

Math meets sudoku in this fun, challenging puzzle craze from Japan. Ready for step two? These KenKen offer a challenge that intermediate solvers will enjoy. KenKen is a grid-based numerical puzzle that uses basic math operations--addition, subtraction, multiplication, and division--while also challenging your logic and problem-solving skills. In a way, KenKen is like a game of pool or even chess: The more you think ahead to your next move and consider all the possible outcomes, the better you'll get . . . and the smarter you'll become!

Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese art - each title is graded by colour: White for easy, Green for medium, Brown for hard &, Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! Are you a KenKen expert? Then see if you have the skills to handle these 300 high-level puzzles!

KenKen is the brilliant successor to Su Doku that's taken Japan by storm. In collaboration with The Times, Collins - the no 1 puzzle publisher - are proud to publish it in the UK. KenKen is a brain-training puzzle based on logic and simple arithmetic. Perfect for all ages and highly addictive, KenKen puzzles challenge and entertain in an entirely new way. The puzzle was invented by a charismatic Japanese maths teacher, Tetsuya Miyamoto in 2004. The name comes from 'Ken' which is the Japanese word for clever and KenKen translates as'square wisdom'. It's based on simple arithmetic and each puzzle involves some or all of the following skills: addition, subtraction, multiplication and division. As with Su Doku there are clearly defined levels for each type of puzzle from beginner and intermediate to advanced and the puzzles can be on any size grid, from 3 x 3 up to 9 x 9. The puzzles improve numeracy, logical thinking, concentration and perseverance. Can you KenKen?

Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese art - each title is graded by colour: White for easy, Green for medium, Brown for hard & Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! So, you've worked your way through the easiest, for-beginners-only KenKen. The next level awaits you. Do you have what it takes to solve these 300 puzzles?

Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate, another Japanese art, as each title is graded by colour: White for easy, Green for medium, Brown for hard & this one, Black Belt, for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! Are you experienced? These are the hardest KenKen for super-solvers only! Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 with the goal of improving his students' math and logic skills. This understandable, fun and challenging puzzle quickly became a favourite leisure activity for all ages throughout Japan and then for millions of players worldwide. Now it's carried in the "New York Times", "Los Angeles Times", "Chicago Tribune", "The Times", "Scholastic" classroom magazines and more. This book contains 300 puzzles.

KenKen has quickly become the successor to sudoku that the world's been waiting for! KenKen became the first puzzles to be printed in the daily editions of the New York Times next to its famous crossword puzzle. This New York Times edition of KenKen contains 300 4x4 and 6x6 size puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. The puzzles use all four mathematical operations and increase in difficulty like they do in the Times.

Puzzle fans have fallen for KenKen and now crave more challenging puzzles. The puzzles in this edition range in size from 6x6 grids to 9x9 grids and for the first time there will also be grids without application symbols. It's the ultimate KenKen challenge

This edition will also include "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. Includes:
*100 very challenging KenKen puzzles
*Puzzles range in size from 6x6 grids to mind-bending 9x9 grids
* Introduction and solving instructions by puzzlemaster Will Shortz

KenKen is the brilliant successor to Su Doku that's taken Japan by storm. In collaboration with The Times, Collins - the no 1 puzzle publisher - are proud to publish it in the UK. KenKen is a brain-training puzzle based on logic and simple arithmetic. Perfect for all ages and highly addictive, KenKen puzzles challenge and entertain in an entirely new way. The puzzle was invented by a charismatic Japanese maths teacher, Tetsuya Miyamoto in 2004. The name comes from 'Ken' which is the Japanese word for clever and KenKen translates as'square wisdom'. It's based on simple arithmetic and each puzzle involves some or all of the following skills: addition, subtraction, multiplication and division. As with Su Doku there are clearly defined levels for each type of puzzle from beginner and intermediate to advanced and the puzzles can be on any size grid, from 3 x 3 up to 9 x 9. The puzzles improve numeracy, logical thinking, concentration and perseverance. Can you KenKen?

KenKen is the brilliant successor to Su Doku that's taken Japan by storm. In collaboration with The Times, Collins - the no 1 puzzle publisher - are proud to publish it in the UK. KenKen is a brain-training puzzle based on logic and simple arithmetic. Perfect for all ages and highly addictive, KenKen puzzles challenge and entertain in an entirely new way. The puzzle was invented by a charismatic Japanese maths teacher, Tetsuya Miyamoto in 2004. The name comes from 'Ken' which is the Japanese word for clever and KenKen translates as'square wisdom'. It's based on simple arithmetic and each puzzle involves some or all of the following skills: addition, subtraction, multiplication and division. As with Su Doku there are clearly defined levels for each type of puzzle from beginner and intermediate to advanced and the puzzles can be on any size grid, from 3 x 3 up to 9 x 9. The puzzles improve numeracy, logical thinking, concentration and perseverance. Can you KenKen?

KenKen is the brilliant successor to Su Doku that's taken Japan by storm. In collaboration with The Times, Collins - the no 1 puzzle publisher - are proud to publish it in the UK. KenKen is a brain-training puzzle based on logic and simple arithmetic. Perfect for all ages and highly addictive, KenKen puzzles challenge and entertain in an entirely new way. The puzzle was invented by a charismatic Japanese maths teacher, Tetsuya Miyamoto in 2004. The name comes from 'Ken' which is the Japanese word for clever and KenKen translates as'square wisdom'. It's based on simple arithmetic and each puzzle involves some or all of the following skills: addition, subtraction, multiplication and division. As with Su Doku there are clearly defined levels for each type of puzzle from beginner and intermediate to advanced and the puzzles can be on any size grid, from 3 x 3 up to 9 x 9. The puzzles improve numeracy, logical thinking, concentration and perseverance. Can you KenKen?

Are you tough enough?

Tkae on this collection of 200 devilishly difficult KenKen puzzles!

Perfect for solvers who just can't get enough, this colossal collection contains 500 easy to hard KenKen puzzles -- perfect for novices and experts alike. Features:
- 500 easy-to-hard KenKen puzzles
- Edited by legendary "New York Times" crossword editor Will Shortz""
- Big grids with lots of space for easy solving

Math meets sudoku in this fun, challenging puzzle craze from Japan. KenKen is a grid-based numerical puzzle that uses basic math operations--addition, subtraction, multiplication, and division--while also challenging your logic and problem-solving skills. In a way, KenKen is like a game of pool or even chess: The more you think ahead to your next move and consider all the possible outcomes, the better you'll get . . . and the smarter you'll become! Need to learn more about KenKen, or hone your rusty solving skills? These easier white belt puzzles are great for those just beginning to navigate this fun type of puzzle.

Simply put: Sudoku is fun, mind-boggling, and relaxing--all at once. Says "New York Times "crossword editor and bestselling author Will Shortz: "The game can be played at any difficulty level, and it is surprisingly addictive. Soon you'll see for yourself. Pick up a pencil. Can you do sudoku?" This title features 150 easy-to-hard puzzles!

KenKen has quickly become the successor to sudoku that the world's been waiting for! KenKen became the first puzzles to be printed in the daily editions of the New York Times next to its famous crossword puzzle. This "New York Times" edition of KenKen contains 300 4x4 and 6x6 size puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. The puzzles use all four mathematical operations and increase in difficulty like they do in the "Times."

KenKen can be described simply as sudoku with basic math (addition, subtraction and/or multiplication and division). It's a fun, addictive, clever puzzle that's winning fans the world over.

Already more than one million KenKen books have been sold in Japan and is a huge hit in The Times of London. Now, America can catch KenKen fever!

Our first book contains 100 easy addition and subtraction KenKen puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz.

KenKen can be described simply as sudoku with basic math (addition, subtraction and/or multiplication and division). It's a fun, addictive, clever puzzle that's winning fans the world over.

Already more than one million KenKen books have been sold in Japan and is a huge hit in The Times of London. Now, America can catch KenKen fever!

Volume 3 contains 100 KenKen puzzles that use all for mathmatical applications with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz.

Puzzle fans have fallen for KenKen and now crave more challenging puzzles. The puzzles in this edition range in size from 6x6 grids to 9x9 grids and for the first time there will also be grids without application symbols. It's the ultimate KenKen challenge!

This edition will also include "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. Includes:
*100 very challenging KenKen puzzles
*Puzzles range in size from 6x6 grids to mind-bending 9x9 grids
* Introduction and solving instructions by puzzlemaster Will Shortz

There's no better way to unwind on your downtime than with a KenKen puzzle -or better yet, one hundred of them! So whether you're hitting the road or simple lounging in the backyard, your vacation begins the moment you pick up a pencil! Includes:
*100 easy to challenging KenKen puzzles
*Puzzles range in size from simple 3x3 grids to mind-bending 9x9 grids
* Introduction and solving instructions by puzzlemaster Will Shortz

Looking for fast, friendly puzzles that won't bite back? This fun, portible new series begins with 200 fast and easy sudoku puzzles. Includes: -200 easy, relaxing puzzles-Perfect portable size-Edited by Will Shortz

Not only are these puzzles fun but KenKen helps children improve concentration, logic and arithmetic skills. Children ages 9-12 have excelled in math and gained real-life problem solving skills all from playing a puzzle so engaging that it keeps them coming back for more. This first book of KenKen for Kids features: - 75 easy all addition puzzles to get kids excited about KenKen - Introduction and how to solve instructions from Marilyn Burns- "Home and Classroom Guide for Parents and Teachers" by Ms. Burns- Forward by Will Shortz

Not only are these puzzles fun but KenKen helps children improve concentration, logic and arithmetic skills. Children ages 9-12 have excelled in math and gained real-life problem solving skills all from playing a puzzle so engaging that it keeps them coming back for more. This third volume of "I Can KenKen" features: - 75 easy addition and subtraction puzzles - Introduction and how to solve instructions from Marilyn Burns - "Home and Classroom Guide for Parents and Teachers" by Ms. Burns - Forward by Will Shortz

There's no better way to unwind on your downtime than with a KenKen puzzle -or better yet, one hundred of them! So whether you're hitting the road or simple lounging in the backyard, your vacation begins the moment you pick up a pencil! Includes:
*100 easy to challenging KenKen puzzles
*Puzzles range in size from simple 3x3 grids to mind-bending 9x9 grids
* Introduction and solving instructions by puzzlemaster Will Shortz