KenKen Classic Icon
Download KenKen Classic

KenKen Classic

This is the ONE-AND-ONLY Original KenKen®, the unbelievably fun, exciting and addictive logic and math puzzle that appears daily in the New York Times and hundreds of other publications around the globe. NY Times puzzle editor, Will Shortz, calls KenKen "the most addictive puzzle since sudoku." KenKen is a great way for puzzle fans of all ages to exercise their brains, and is the only version of this puzzle authorized by its creator, Japanese educator Tetsuya Miyamoto. Only KenKen guarantees hundreds of difficulty levels and just a single solution per puzzle. Don't be fooled by unauthorized versions such as Mathdoku and Calcudoku, and don't get stuck in a Sudoku rut. Play KenKen math puzzles today!
Category Price Seller Device
Games Free KenKen Puzzle, LLC iPhone, iPad, iPod

There are virtually unlimited KenKen puzzles available to you on this app. The first 50 are included FREE with the download. If you need more...no problem! Just order them and they'll appear immediately. YOU select the size, difficulty level, and operations. After you complete a puzzle, a new puzzle of the same type will automatically load so you can continue to challenge yourself.

What is KenKen? This amazing brain exerciser is a grid-based logic puzzle and math game that is frequently described as "sudoku on steroids." How do you play? It’s as EASY as tic-tac-toe... For a 3x3 puzzle, use the numbers 1-3; for a 4x4 puzzle, fill in with numbers 1-4; for a 5x5 puzzle, use the numbers 1-5, and so on. Do not repeat a number in any row or column. Complete rules are available in the app for your convenience.

A Little KenKen History: KENKEN was developed in 2004 by (no, not two guys named Ken) acclaimed Japanese mathematics educator Tetsuya Miyamoto. His goal was to improve his students’ math and logic skills. And what better tool than a puzzle? So he developed one that would be understandable, fun, and challenging for people of all ages and skill levels. Most importantly, he wanted the puzzle to encourage independent thinking, emphasizing logic, reasoning, concentration, and perseverance. His puzzles immediately met with unbelievable success and are now used the world over for kids, adults and the elderly. KenKen has proven to be one of the world's best brain exercises for people of all ages, and can now be found in over 200 publications worldwide.

KenKen Classic includes:
- 50 FREE fun math puzzles of every size and difficulty level
- Unlimited FREE 3x3 size puzzles to learn from and enjoy
- Virtually unlimited puzzles, ranging from 3x3 to 9x9 grids, from Easy to Expert
- A variety of color schemes and music (you can even set your own music to play in the background)
- 3 input modes for digits and notes
- Great extra features such as Hints, Check, Undo, Redo, Reset, Pause, and Timer
- Online leaderboards
- Ability to post results directly to Facebook and Twitter
- Ability to email results and invite friends
- KenKen Store to purchase puzzles of all sizes and difficulty levels

Reviews

Fun app
Pickleja

Easy to use, many levels to choose from.


Great Puzzle App
Rocksandrainbows

I love the Ken-Ken App because it’s my go-to for puzzles and offers varying levels of difficulty which I use according to how much time I have.


Random place from which to pick answers
RedRose180

Sometimes the numbers and options are at the bottom of the screen and sometimes the numbers and options appear in a box in the middle of the screen with some numbers in gray. There seems to be no reason that sometimes it is one place and sometimes another. And no reason why different numbers in the box are different colors. It gets annoying not knowing where to look for the numbers right away. I prefer the bottom because then the box with the numbers doesn’t block my view of the puzzle board. Why isn’t it consistent?


Good, not perfect
JaxomReview

Good and well made. They are over zealous with the ads though.


Terrific way to teach logic
Wpressboy

The interface for entering numbers and notes is a little awkward which may make it difficult for young children; however, it is an excellent tool for teaching math and logic. Can be used for elementary students through adults.


Thank you
Reyanam37hope

I love it! I just started and I am addicted.


Heat
kidchow

Really loved and enjoyed the game. But every time I start a puzzle my phone began to heat up. I can not play for even 2 mins since my device is too hot. It never happened with other apps. I am afraid this app is attacking my phone.


Good game but could a minor update
Lizkw

I really think the game will be better with EVERY level for free cuz I only have 15$ plz short the price a little but besides for that I have been really enjoying my self and can rage a little but good game and I was confident for making this 4 star rate and keep up the good work and great game so far Sincerely hunter age 7


Great logic long-game
RaincityBoxer

I’ve really enjoyed learning this game and disagree that guessing is necessary, as others have suggested. And I love taking my time to get it right - no pressure from speed. I can put the puzzle down and revisit it later with fresh eyes to see the next move. The expert level 9x9 can take me several attempts to get right, but it is all math and logic. My record is 72 cumulative minutes on the first attempt - but who cares!


Soooooooooo good! I love it! ???????????????
hugo thorn

I’m only 8 years old and I’m playing this app! So well made, super hard puzzles, and tons of puzzles! I’m glad to have an app like this so thank you for making this awesome app! P.S. it’s fun, too! Love, Hugo


Featured on lists