Each of our KenKen puzzles are generated by a proprietary computer program that we call "The Kenerator" which was developed using advanced artificial intelligence techniques. The Kenerator generates each puzzle individually and checks every puzzle to ensure that it is unique, the totals in all the cages are correct, and that no row or column uses the same number more than once. The Kenerator also verifies that there is only one solution to each puzzle. Guaranteed!
Sometimes solvers contact us believing they have found a flaw in a puzzle but up to now -- after hundreds of millions of puzzles have been played -- no puzzle generated by the Kenerator has ever been found to have an error. We would, of course, want to know if an error DID exist in any of our puzzles so if you've checked and double checked (and triple checked) your solution and still think there's an error, feel free to contact us. You can also pass it by a peer either in person or via our Facebook Community just to be sure.
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To learn more about the Kenerator, click here
If you still have questions about KenKen Solutions please contact us with your question. If you are passing along a puzzle that you believe has an incorrect solution, please include an image of the puzzle as well as information about where the puzzle was found. Thank you.