Cat Sudoku — Free Online Cat Logic Puzzle
Activate a square to cycle between empty, cat, and crossed out. Place one cat in each row, column, and color. Cats cannot touch, even diagonally. Arrow keys move between squares.
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How to play cat sudoku
Play cat sudoku online. One cat per row, column, and color. No two cats touch.
- 1
Read the colors
Each color is one region. The squares in a region touch by the edges, and each region also has its own pattern so the puzzle is not color alone.
- 2
Fill every row, column, and region
Place exactly one cat in each row, each column, and each colored region.
- 3
Keep the cats apart
Two cats cannot touch, even at the corners. Diagonal neighbors are too close.
The full walkthrough is on how to play.
Tips and strategy
- Mark the squares you rule out. Tap a square for a cat, tap again for a cross, and tap a third time to clear it. A cross is only a note. It is not a cat.
- Check, hint, or undo. Check points out broken rules. Hint places one correct cat. Undo takes the last tap back, including a hint.
- When a row, column, or color has only one open square, that square is the cat.
Questions about cat sudoku
What is cat sudoku?
Cat sudoku is a logic puzzle played on a colored grid. You place one cat in every row, every column, and every colored region so that no two cats touch, even diagonally. It feels like sudoku because each group is filled exactly once.
How do you play cat sudoku?
Tap a square to place a cat, tap again to cross it out, and tap again to clear it. Every row, column, and color needs exactly one cat, and cats cannot sit next to each other, including on the diagonal. The puzzle is finished when those rules are all satisfied.
Is cat sudoku a queens game?
Yes. The rules are the queens rules: one piece in each row, column, and colored region, with no two pieces touching, even at a corner. Cat sudoku uses cats instead of crowns. The queens game page explains that connection and has a playable grid.
Can I play cat sudoku online on my phone?
Yes. Cat sudoku runs in the browser on phones and computers. There is nothing to install and no account to make. Your current puzzle, timer, and streak stay in this browser.
What is the daily cat sudoku?
Everyone gets the same puzzle for the local calendar day. Finish it to keep a streak. Tomorrow’s grid is different. Practice puzzles are separate and never run out.
How do easy and hard cat sudoku puzzles differ?
Easy puzzles are 6 by 6, medium puzzles are 7 by 7, and hard puzzles are 9 by 9. Larger grids have more regions to keep track of. Every puzzle on this site has one solution.
Can I make my own cat sudoku and share it?
Yes. Paint the colored regions, and the site checks that they form one connected shape each and that the puzzle has a single solution. You then get a link that opens that exact puzzle.
Does cat sudoku need an account?
No. You can play immediately. Progress is saved in local storage on your device. Clearing site data in the browser removes that saved progress.
Embed this puzzle
Paste this on a page of your own. The text link points back to Cat Sudoku and is a normal followed link.