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What KenKeners are saying:
 
 

Everybody is raving about KenKen!

Read this Great Review from Pocket Gamer!

Your puzzles rock!! I've been sharing the puzzles with all my friends!! 
-- Jack S.

 

OK, I love it. Every morning I have my KenKen with coffee. I think it's a fabulous tool for developing number sense and logical thinking. The progression of difficulty is also wonderful.  Oh, and did I mention that it's great fun?
-- Cynthia L., Creator of Fun Mathematics Lessons, Rice University

I ordered three Will Shortz Presents KenKen books:  Easiest, Easy and Easy to Hard.  I got them two weeks ago and am finished.  I need more.  Soon.  None of these piddly little 6x6 ones either.  I want 9x9 with all four operations.  It has to be something that takes me longer than 2 or 3 minutes to do.  Big thick books.  Lots of puzzles per page.  Soon.  Please. Please?  Tell Will Shortz. -- Gaylene H.

On CNET I got started on KenKen after reading an article by Stephen Shankland, "My Latest Puzzle Love:  KenKen.”  KenKen is mind challenging and very addictive.
– Phillip Q., United Kingdom

I'm a college student at Towson State, and I found KenKen in my university's newspaper. Very Addictive! -- Elysse F.

I first saw KenKen in the Boston Globe in November 2008.  By the time I'd finished the first puzzle I'd become completely smitten … itching to get hold of more puzzles.  I couldn't wait to show the puzzle to the math teachers in the course I teach as part of the Math for Teaching program I direct in Harvard's Extension School. As a math teacher I'm always thinking about what it takes to capture and keep people's attention in classes.  KenKen attracts people no matter what their math background.  It's concise and elegant, and inspires people to use their mind in mathematically sophisticated ways they might not have thought possible!
-- Andrew E., PhD, Director, Math for Teaching, Harvard
Harvard

 

We were crossword and sudoku nerds, and then the Boston Globe introduced KenKen. Now we really have no life!
-- Walter and Kristen A., Boston Mass.

I tried it at the National Sudoku Championship and have been hooked since then. -- Rich

I saw a puzzle on a cruise with Norwegian Cruise Line.  What a horrible addiction you have started!  Thanks ever so much!!
-- Laura W., Kansas City

I subscribe to the New York Times online for the crossword.  When Will Shortz introduced KenKen I immediately tried it … again and again and again … quickly addicted! -- Elaine H.

First, we are a French family.  We learned about KenKen in my youngest daughter's newspaper called "Le Petit Quotidien."  She loved it immediately, and the whole family found the idea fantastic so we googled KenKen and found you as well as 3 books printed in French by a French editor (Le Père Castor).  Now we are a bunch of fans! 
– Marie Helene

I'm a huge Sudoku and Kakuro fan, and when I saw the KenKen puzzles in the January Reader's Digest [the cover proclaims:  “the New Puzzle Sensation is Here!”], I was excited! A new puzzle to add to my obsession! -- Fran M. 

I like to work the crosswords on the New York Times website and saw the KenKen link and the promotion by Will Shortz. I tried KenKen and liked it. Now I am telling family and friends who like sudoku to give KenKen a try.  Perhaps KenKen should be distributed to elementary schools for use in the math curriculum in the U.S.  Thanks for the new cognitive stimulation.
-- Dr. Russell Y., Wayne State University School of Medicine, Detroit
Text Box:

I heard about KenKen from the NY Times puzzle page. I am a teacher (professor of computer science), but don't teach at a level where I would use these instructionally -- except perhaps as an exercise in heuristic constraint-solvers or something (interesting to think about using a SAT solver to solve KenKen :-) ). I do sometimes work some online with my 4th grade daughter to increase her facility. The NYTimes ones are in a good range for that. -- Eliot M.

I usually make a beeline for the puzzles section of the bookstore where I was looking for something more exciting than sudoku and even kakuro. Found a KenKen book and was instantly hooked, but was disappointed with no more on the shelf, so I tried the Net for more puzzles.
-- Prof Nadine B., School of Pharmacy, United World Colleges, S. Africa

I first read about KenKen in the Albuquerque Journal. It gave one puzzle. I was bored with sudoku and googled “KenKen.” That's how I discovered your website. I've done all of your “Play Now” puzzles and am looking for more. The puzzles are great stuff! -- Cindy M.

I learned about KenKen's existence through the New York Times website, around New Year's Day. Just today I discovered the 5x5, 7x7 and 8x8 versions in your own website. Please convey to Miyamoto-san, Will Shortz and the NYT editors that they are fiendish, if not outright evil, for unleashing and disseminating this superlative time-waster and productivity-buster.  I have to answer to my wife!
-- Fernando M., Brazil

While playing sudoku on a plane, a lady next to me showed me KenKen and had an extra puzzle for me to try.  Very clever.  She uses it with math teachers to improve learning skills. I have also forwarded to my wife to share with math teachers in her school. -- Henry D.

Could not go to sleep until I solved my KenKen. Love these puzzles.
-- Eric K.
     
 

 

 

 

 

 

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