What is KenKen?
KenKen is a cage arithmetic puzzle where every row and column uses the numbers 1 through 4 once.

Math Logic
KenKen is a compact cage arithmetic puzzle for players who enjoy logic and math. Use the target labels on each cage to work out the only valid numbers in every row and column. Tap play to open the full game. Once you start, the interactive board and controls will appear immediately below.
KenKen is a cage arithmetic puzzle where every row and column uses the numbers 1 through 4 once.
Each cage must match its arithmetic target using addition or multiplication.
This version is evergreen and rule-based, with a rotating lightweight puzzle.
Yes. KenKen is free to play and works entirely on the client.