Want KenKen Ad-Free? — FIND OUT MORE    Why do we have ads?

Why are there ads?

We would love to provide everyone an ad-free experience, but we do need to generate revenue to cover at least some of our overhead. We're trying to be as reasonable as possible, and it also allows us to continue to offer you an option to access KenKen puzzles for free. For those who prefer an Ad-Free playing experience, we have an option for just pennies-a-day and it can be canceled anytime. BONUS! KenKen Premium also allows you to Track Your Progress, Join The Leaderboard, Save Puzzles, and more. Please consider this option for the best experience.

In addition, we continue to offer -- pro bono -- our KenKen Classroom Program which provides free KenKen puzzles and lessons to over 1 million students weekly. Revenue we raise from advertisements and subscription sales allow us to keep the program going, plain and simple. So thank you for supporting these teachers and students by supporting us. We all appreciate it.



Testimonials from parents/grandparents

KenKen® provides fun for the whole family. Here's what some parents had to report:

"I think this game is mind blowing, I have a grandson who is 6 years old, I will surely teach." Tony C.

Sudoku is my family’s second greatest pastime now. Yvette F

My family has been with me for Christmas. All eight of us are hooked! Some of the 9x9 puzzles have taken me weeks and brought much enjoyment. Deb P

My husband, 19-year-old college daughter and I enjoy KENKEN immensely. Sandy S.

It helps my grandchildren with their problem solving skills. Miriam S.

Great resource to improve Math Numeracy & Problem solving! And my kids think its fun! Well done! Dan W.

I have introduced it to my family and friends and they LOVE IT!! Lori T.

Our whole family including 2 young children and my husband love KenKen. Tanya B.

This has been a great way to get my kids interested in math. Thank you! Joanne W.

KenKen Puzzles are a great way for children to apply mathematical skills such as addition, subtraction, multiplication and division. Christina M.

My 13 year old grandson LOVES KenKen. We bought him a KenKen book and he finished it and is asking for another. Peggy L.

I’m still trying to master the hard 6x6’s. Got the grandkids hooked, as well. Mary Jane C.

My son mentioned that he had discovered KENKEN and since he is an inveterate sudoku player, he tried it. He was hooked. Likes it even better than sudoku. Jeanne K

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Welcome to KENKEN!

No matter what you're looking for — learning or fun — KenKen.com has it! Free online puzzles. Cool math games. Number games. (More addictive than Sudoku or Kakuro? You decide!) Educational games for kids. Visit our For Teachers section for math teacher resources, our free KenKen Classroom program, and a message from Tetsuya Miyamoto, the Japanese educator behind KenKen. Miyamoto, chess master David Levy, and the rest of Team KenKen have crafted these math puzzles into great games for learning and brain training. Need even more KenKen? Check out our Will Shortz Presents books. Try our mobile app on iPhone and iPad or our Kindle version. Play on the New York Times puzzle page and NCTM website. Regardless of why, how, or where you play, KenKen are the math puzzles that make you smarter!

Team KenKen