01
One cat in every row and column
A completed board has exactly one cat in each horizontal row and each vertical column. Once a cat is fixed, every other cell on those two lines can be marked unavailable.
Play Sudoku with Cats Online
Level 1
Start from the locked cat.
How to play
How to Play Cat Sudoku
Learn the rules, make a safe first move, and keep the puzzle playable from the same page.
Cat sudoku is a logic puzzle inspired by the clear grid thinking of traditional sudoku, but MeowDoku does not ask you to fill a board with digits. Each puzzle gives you rows, columns, and colored regions. Your job is to place one cat in every row, every column, and every colored region. The board is solved only when all three rules agree at the same time. That makes sudoku with cats familiar to players who enjoy deduction puzzles while giving every decision a different visual clue.
Start by scanning a row or region with few open cells. A cat already placed in a row removes every other cell in that row and its column. It also removes the eight surrounding cells, because cats cannot touch horizontally, vertically, or diagonally. Use X marks to keep track of cells that are impossible, then look again at the remaining candidates. When a row, column, or colored region has one legal place left, you have a safe cat placement rather than a guess.
You can play sudoku with cats directly in your browser, with no download or account requirement to begin. Your progress stays in this browser unless you choose optional sign-in. Open the rules for a focused explanation, use the tips page when a pattern needs a second look, or browse the level library to compare a finished board with checked answer coordinates. The goal is a calm, logic-first puzzle: use the rules to narrow the board, place each kitty with confidence, and keep moving one clear constraint at a time.
02
One cat in every colored region
Each colored area also contains exactly one cat. Small or narrow regions are useful starting points because they often have fewer legal cells.
03
Cats cannot touch
Cats may not share an edge or a corner. A placed cat therefore excludes all surrounding cells, including the four diagonal neighbors.
A calm way to play
Three constraints, one clear answer
Every board combines row, column, colored region, and no-touch constraints. Mark impossible cells first and place a cat only when the remaining position is forced.
- Mark the board
Cycle an empty square into a mark before committing to a cat.
- Place a cat
Only place when a row, column, region, and neighboring cells agree.
- Use a hint carefully
A hint reveals one safe direction while leaving the rest of the reasoning to you.
- Reset with context
Undo or restart keeps the board approachable when a trial needs reconsidering.
Start with a checked guide
Useful reference points
Every guide includes an accessible final answer map.
Video source records stay attributed and their availability is stated separately.
- Level 1
4 × 4
- Level 101
8 × 8
- Level 173
10 × 10
A puzzle with a rhythm
Help without leaving the puzzle
Open the concise rules, browse all 270 English answers, or jump straight to a numbered level while your current browser progress stays saved.
- checked English answer pages
- 270
- original guide cats
- 5
- core interface languages
- 6
Start with the tightest region
Scan for regions with very few cells or several blocked lines. They reveal forced cats and create useful exclusions elsewhere.
Cross-check rows and columns
A cell can look open inside its region but still be impossible because its row or column already has a cat. Recheck all three memberships before placing.
Use diagonal pressure
A confirmed cat blocks the four corner-touching cells. Those diagonal exclusions often reduce a neighboring region to one legal position.
Choose your way to play
Play Meowdoku Online
Play the browser edition immediately, or use the publisher's official store listings for the original app.
No download is needed for the playable guide above; progress stays in this browser unless you choose optional sign-in.
App Store ↗
The official iPhone and iPad listing is maintained by the original app publisher.
Google Play ↗
The official Android listing is maintained by the original app publisher.
Cat Sudoku FAQ
Questions about playing sudoku with cats
What is sudoku with cats?
Sudoku with cats is a cat-themed logic puzzle. In MeowDoku, you place one cat in every row, column, and colored region while keeping cats from touching, even diagonally.
Is MeowDoku free?
Yes. The MeowDoku browser puzzle is free to play without a download or an account. Optional sign-in is only available when you want to keep progress across sessions.
How do I play cat sudoku?
Use rows, columns, colored regions, and the no-touch rule together. Mark impossible cells with Xs, then place a cat only when one legal position remains.