One cat per row and column
Once a row has its cat, every other cell in that row can be marked ✕. Same for columns. Note it is exactly one, not at most one.
Meowdoku · Cat Logic Puzzle
No download, no sign-up — the board above is playable right now. The rules are simple: exactly one cat in every row, every column and every coloured region, and no two cats may touch, not even diagonally. Every board is checked for a unique solution.
Works on phone, tablet and desktop · Best times and streaks stay in your browser
Click a cell: empty → 🐈 → ✕ → empty · Right-click / long-press: mark ✕ · Ctrl+Z undo · Arrow keys to move, Space to place, X to mark
This board is plain HTML and readable without JavaScript (the 2026-11-07 daily puzzle). With JavaScript enabled it becomes interactive and updates to the current day in your time zone.
Answer · cat column per row(2026-11-07)
5 → 2 → 6 → 1 → 4 → 7 → 3
Board code: 7:1111000110100211000223100222333442536646256666666
You can learn the rules in 30 seconds. The fun is that every move has to satisfy the row, the column, the region and all eight neighbouring cells at once.
Once a row has its cat, every other cell in that row can be marked ✕. Same for columns. Note it is exactly one, not at most one.
The board is split into as many regions as it has rows. Regions differ in size and shape, but each one gets exactly one cat.
Including diagonally. A cat blocks all eight cells around it — and any blocked cell can never hold another cat. The diagonal rule only covers neighbouring cells, not the whole diagonal.
Every board here is generated on the fly and checked by our solver for a single solution. Clashing cats turn red immediately, but a cat that breaks no rule yet is not necessarily correct.
Work through these in order when you get stuck. Most positions have a next move you can prove without guessing — and the Hint button will explain it.
A region of two or three cells has very few options. If one of them is blocked by another cat, the rest is forced. This is the most reliable opening.
Cross out its row, column, region and the eight surrounding cells. Most "stuck" moments are just one missed elimination; fix it and the chain reaction resumes.
Right-click or long-press to mark a cell as impossible. Once every impossible cell is marked, the remaining blanks reveal the answer by themselves.
If two regions can only place their cats within the same two columns, those columns are fully taken — no other region can use them. This counting argument is the key to harder boards.
It only says the two cats conflict. Step back and recheck your earlier deductions instead of moving pieces at random. To verify a whole board, use the solver.
The daily puzzle changes at local midnight and is always 7×7. Check any answer in the daily answer index, or verify a board you typed in with the solver.
Today's puzzle (2026-11-07) is generated and verified for a unique solution. Find the answer and per-board reasoning in the daily answer index, or open today's answer page.
Switch to Free play for endless 5×5, 7×7 and 9×9 boards. Hit New board and you will practically never see the same one twice.
Every daily puzzle has its own page with the answer and reasoning. Browse the daily answer index, or check a board you entered with the solver.
Meowdoku is a cat-themed logic puzzle built on one-star Star Battle, the same family as LinkedIn Queens. It borrows the word "doku" but has no numbers at all — "cat logic puzzle" or "cat sudoku" describes it better.
Click a cell to cycle empty → cat → ✕; right-click or long-press to mark ✕ directly. Every board is checked by a solver to have exactly one solution, and the Hint button gives you the next move with its reasoning. No guessing needed.
No. This web version has no ads, no three-mistake limit, no purchases, no sign-up and no download. That is exactly why people search for "meowdoku without ads" or "meowdoku online".
The rules are essentially identical: one piece per row, column and region, with no touching. Classic Star Battle usually asks for two stars per row, column and region; Meowdoku and Queens use one — here, shaped like a cat.
Yes. The board adapts to any screen and long-press marks ✕. Your timer, best times and streak live in your browser's local storage — no account, and nothing is uploaded.
Hints first try human-style deductions such as unique candidates in a row, column or region plus neighbour elimination, and explain the reason. If the position is beyond basic deduction, the hint falls back to the verified unique solution and says so. You can also check a full board with the solver.
An independent little project. This is a free browser version of the cat logic puzzle. Every board, answer and reasoning note is computed by our own generator and solver: we build the regions, enumerate every legal arrangement to confirm there is exactly one solution, and only then publish. No third-party puzzle library, and no personal data collected.
Update cadence. A new daily puzzle appears at local midnight, and every past puzzle keeps a permanent link. The daily answer index is regenerated alongside the archive.
Name note: "Meowdoku" is also the name of a mobile puzzle game. This site is not affiliated with, endorsed by, or sponsored by that game or its publisher; the name is used descriptively to refer to this style of puzzle. Rights holders with questions are welcome to get in touch.