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EnglishWhat Is Kakuro Puzzle (kakuro-puzzle.online)?
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Kakuro Puzzle at kakuro-puzzle.online is a free browser-based number crossword site where you fill white cells with digits 1–9 so each across and down run matches its clue sum, with no repeated digit inside a single run. You can start playing instantly without downloading anything; signing in with Google is optional and is what saves your progress, best times, and daily wins.
What you can play
The site organizes play into four modes, so you can pick based on how much time and challenge you want:
| Mode | What it offers | Good for |
|---|---|---|
| Regular | 200 levels, starting at Level 1 (Easy) | Working through a graded progression |
| Daily | 5 puzzles per day | A short daily habit |
| Unlimited | 7x7 verified seeds | Open-ended practice |
| Battle | 3, 5, or 8 puzzle challenges | Competing on a set of puzzles |
The board itself is a standard Kakuro grid: black clue cells with numbers in their triangles, and white cells you fill in. The interface includes a number pad, notes for marking candidates, undo, hint, check, and reset, plus a timer and a filled-cell counter (for example, "0 / 4 filled" at the start of Level 1).
How a turn works
- Find the clue. A number in the lower-left triangle of a black cell controls the across run to its right; a number in the upper-right triangle controls the down run below it. Some cells carry both, starting one across sum and one down sum at once.
- List legal digits. Only 1–9, and never the same digit twice in one run — so a two-cell clue of 4 must be 1+3, not 2+2.
- Cross-check. Every white cell belongs to both an across run and a down run, so a digit is only useful if it satisfies both sums.
The site's own walkthrough uses a small example: a yellow 3 pointing at two white cells means those two cells add to 3 without repeating, so you tap the first highlighted cell and enter 1.
Rules that trip people up
Most mistakes come from three habits the site calls out directly: treating a clue as if it covered a whole row, allowing a repeated digit within a run, and forgetting that each cell must satisfy two clues. A digit may appear more than once on the board as long as the repeats are in different runs.
When this site fits your needs
Choose it if you want to start a Kakuro puzzle immediately in a browser, want a structured level path alongside daily and unlimited options, or want to try competitive play. Skip it if you need offline play or downloadable puzzle files — nothing on the page indicates either. Progress saving depends on the optional Google sign-in, so if you play without signing in, don't expect your times and daily wins to persist.