KenKen
A Latin square with arithmetic on top. Fill each row and column with the numbers one to the board size, no repeats — but the heavy outlines mark cages, and the numbers inside each cage have to hit its target using the sign shown. It asks for a little mental arithmetic alongside the deduction.
How it works
- Fill each row and column with 1 to the board size, no repeats.
- Heavy outlines mark cages. The cells in a cage must produce its target.
- “6+” — add the cage values to make 6. “6×” — multiply them to make 6.
- “3−” — a two-cell cage whose values differ by 3; order doesn't matter.
- A cage with just a number and no sign is that value outright.
The same rules are shown inside the app, on the puzzle’s overview screen — one tap opens the difficulty choice and how to play together, so you never have to go looking for them.
Good if you want…
- Sudoku-style deduction with arithmetic in it
- A smaller grid that still takes some working out
- Something a bit less familiar than Sudoku
KenKen in Winters Puzzles
KenKen is one of 32 puzzles in Winters Puzzles, so it sits alongside Sudoku, Nonogram, Kakuro and everything else in the app rather than being a download of its own. It can turn up in Today’s Mix, and it counts towards your stats and streak like any other puzzle.
Play KenKen.
Free on iPhone and iPad, with 31 other puzzles alongside it.
