Kakuro
Kakuro is a crossword made of numbers. Every run of white squares must add up to the clue beside it, and no digit can repeat within a run.
How to Play
- Each dark clue square shows the total for the run of white squares to its right (top number) and/or below it (bottom number).
- Fill every white square with a digit from 1 to 9 so each run adds up to its total.
- A digit can't appear twice in the same run.
- Click a square, then type a digit or use the number pad. Arrow keys move between squares.
- Turn on Pencil (or press P) to jot down possible digits. The helper under the grid lists every combination that fits the selected runs.
Tips & Strategy
- Learn the unique combinations: 3 in two squares is always 1+2, 4 is 1+3, 16 is 7+9 and 17 is 8+9.
- In three squares, 6 is always 1+2+3 and 24 is always 7+8+9.
- Where two runs cross, the digit must belong to both of their possible combinations.
- Repeated digits and wrong totals turn red, so mistakes are easy to spot.
Frequently Asked Questions
Yes. Every puzzle was checked by a solver to make sure its clues lead to exactly one answer, so you never have to guess.
Both use the digits 1 to 9 without repeats, but Kakuro adds arithmetic: instead of rows, columns and boxes, each run of squares has to reach a given total.
At midnight in your own time zone. Everyone gets the same medium-size puzzle on the same date.
Small notes in a square for the digits it might be. They don't count as answers, so use them freely while you narrow things down.
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