Play online
Choose a 6 × 6, 8 × 8, or 10 × 10 board and Easy, Medium, or Hard. Use a hint when a deduction is hard to see, restart to try another route, or switch to a new puzzle.
Start the first puzzle →A little cat logic, right in your browser
Play cat puzzles, solve screenshots, and explore checked level guides. Free, with no account needed.
Try the tiny teaching board first, then choose a board size and difficulty on the full Play page.
Try it now
4 × 4 teaching board · two Cats already placed
Click or tap to cycle: empty → X → Cat → empty. Enter or Space cycles the cell; Shift+Enter places or removes a Cat. This small example is separate from the full Solver.
Try placing the two missing Cats.
Choose your next move
Choose a 6 × 6, 8 × 8, or 10 × 10 board and Easy, Medium, or Hard. Use a hint when a deduction is hard to see, restart to try another route, or switch to a new puzzle.
Start the first puzzle →Have a board in another game? Choose, drop, or paste its screenshot here. The Solver opens the image on your device, then helps you align the grid, correct regions and clues, and find an answer for that exact board.
The image stays on your device. A temporary browser copy carries it to the Solver and is removed after opening.
No screenshot selected.
Open the Solver to upload there →Checked guides
Open a fixed special level guide for its checked board, answer, and rule-based steps where available. The number box also finds any of our published reference guides. If the colored regions on your screen differ, use the Solver with your own board.
Learn the puzzle
Meowdoku is a placement puzzle. A colored region may bend around the board, but its shape does not change the goal: exactly one Cat belongs in each row, each column, and each region. You also have to keep Cats apart. A mark of X means you have ruled that cell out.
A Cat fills its row and column. Every other cell along those two lines is no longer available for another Cat.
On a four-row board, your final answer needs four Cats in four different rows and four different columns. A fixed starting Cat already counts toward both totals.
Each color group needs one Cat, even when its cells form an irregular shape. Once you place one, cross out its other cells.
A region is identified by its color, not by a rectangular outline. When checking a guide against your game, compare the entire color pattern before using its answer.
Cats must stay apart horizontally, vertically, and diagonally. The eight cells around a Cat can all be marked X.
The diagonal part is easy to miss. Two Cats in neighboring rows cannot sit in neighboring columns, even if their colors are different.
Start with a Cat that is already fixed. Mark its neighboring cells X, then eliminate every other cell in its row, column, and colored region. This is a rule-based step you can check on the board; it does not require guessing the final answer.
Now look for a row, column, or region with only one cell left that could hold its Cat. That remaining cell is forced. For example, if three cells in a four-cell region are blocked by a fixed Cat’s row or by the no-touch rule, the fourth cell must contain the region’s Cat. After placing it, repeat the same eliminations. A new Cat may create another single candidate elsewhere.
When no single candidate is visible, the Solver can check conflicts and show a justified step where its rules support one. If it has to search to find a complete answer, that search result is not presented as a human-style deduction. You can enter the regions manually or align a screenshot before asking it to solve.
Explore more solving strategies →Our published guides contain two kinds of boards. Fixed special levels have reviewed mappings to their level numbers. Other guides are labeled reference boards because they follow a specified simulation and selection path. A player with a different game version or play history may see a different board under the same number.
Reference guides include rotation and mirror controls to help you compare the same board in another orientation. These controls move the colors, clues, hints, and answer together; they do not turn a genuinely different set of regions into yours. If the pattern still does not match, upload a screenshot or build your board in the Solver. Use the answer that belongs to the board you actually see.
My board looks different — open the Solver →Players may use cat sudoku or meow sudoku to describe this kind of Cat placement puzzle. Meowdoku uses one Cat per row, column and colored region, with no touching even diagonally. It shares placement ideas with Queens and Star Battle, but check the rules of each game. This is not traditional number Sudoku.
Meowdoku Web is currently free, with no account, download or extension required. You can try it in a modern browser on a computer, Chromebook or phone. Access at school or work depends on your network and device policies; we cannot guarantee that it is unblocked or bypass those restrictions. Our Privacy page explains how screenshots and page requests are handled.
The image is processed locally. When you start on this homepage, a temporary copy is kept in your browser only long enough to open it on the Solver page, then removed. The Solver may still need you to align the grid and correct colors or clues before solving.
This site currently publishes 194 numbered guides in ten languages. Eighteen are fixed special levels; the other 176 are clearly labeled reference boards. That is the count of guides on this site, not a claim about the total number of levels in the original game.
Open Play, choose a board size and difficulty, then click or tap a cell to cycle through empty → X → Cat → empty. Place one Cat in each row, column and colored region, keeping Cats apart even diagonally. Use X to mark excluded cells, and Undo or a hint when you need help. No installation is required.