KenKen® is a puzzle game that helps students improve their calculation skills, logical thinking and persistence. The goal is to fill a grid with numbers so that no number appears more than once in any row or column. In addition, the numbers must combine to form a target number using a specific operation.
This page is updated with four new KenKen puzzles daily and is provided in collaboration with Nextoy, LLC.
Goin' mobile? Download NCTM KenKen from the iTunes App Store today!
Use the numbers 1 to n to fill an n × n grid — for instance, use the numbers 1, 2, 3 and 4 to fill a 4 × 4 grid — according to the following rules:
The solution to the puzzle will be unique.
This page is updated with four new puzzles daily. Each puzzle has different characteristics.
Select one of these types under "Today's Puzzles." Solutions to the previous day's puzzles appear under "Yesterday's Solutions."
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