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KenKen Classic

By KenKen Puzzle

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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. Start KenKen'ing today!

There are virtually unlimited puzzles available to you on this app. The first 31 are included FREE with the download. If you need 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:
- 31 FREE 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 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

What's New in Version 1.71

- Speedier puzzle loading and game play
- Improved memory management
- General fixes for an even more enjoyable experience


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Customer Reviews


This app is so incredibly slow. It should be the fastest app I have considering it caches all data, doesn't need to grab any data from the web AND it has the lowest level graphics possible.

However, this app is so slow that it makes all my other apps look like they are on steroids fast. Any app from angry bird to infinity blade and any other app and game that actually has graphics and actual movement...they are all much faster than this garbage app.

I even paid $5 to this app to add more puzzles and remove ads, but the app is still slower than the freaking dinosaurs. Im giving it 2 stars merely for the fact that it is Ken Ken and that it has the additional benefit of noting possible/not-possible values, cheating by giving a single value at a time, and showing what placed values are wrong. Im a developer and specialize in efficient coding, you guys should contact me, I could look into this and Im sure I could find major efficiency issues as I imagine your current developer is probably in their undergrad or still in highschool.


The previous release had such a huge lag time, it was MADDENING. I really hoped this update, which promised "speedier game loading" and "improved memory" functioning, would really BE an improvement. Unfortunately, there was ZERO improvement. I still have to wait up to a minute just for games to load - and the very first "new" one I tried to play was the exact same one I'd finished just before downloading the update. Only about half the games I've finished are deleted like they're supposed to be, and the pause/save function is next to useless. The only reason I haven't deleted this app is that, due to a lag in an earlier release, my in-app purchase went through twice, and now I have over 500 games left. So I'm stuck with this ABSOLUTE PIECE OF CRAP APP.

Great fun!!

I found these puzzles while on vacation in Canada, and I loved them. I was familiar with the 4x4 and 6x6 version, but this one has a lot more with a lot more variety of difficulty levels and mathematical operations to choose from. I haven't had to buy more levels yet, but I have not had any difficulties with loading or it being slow that have been mentioned in other reviews. I'm using the latest OS on an iPhone 5.

KenKen Classic
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This app is designed for both iPhone and iPad
  • Free
  • Category: Games
  • Updated: Apr 25, 2014
  • Version: 1.71
  • Size: 21.2 MB
  • Language: English
  • Seller: KenKen Puzzle, LLC

Compatibility: Requires iOS 5.1 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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