Cat Sudoku
Place one cat in every row, column, and region without letting cats touch.
Best for beginners
260 levels
Animal Sudoku Games
Play 780 free, no-number logic puzzles across Cat Sudoku, Dog Sudoku, and Bird Sudoku. Each game has its own placement rules, clues, and solving style.
Choose a GameChoose an Animal Sudoku Game
Dog Sudoku
Use bone clues and adjacency rules to discover where every dog belongs.
Best for clue-based solving
260 levels
Bird Sudoku
Place birds on perches while following sight-line and blocker rules.
Best for layered deduction
260 levels
Not sure which animal to choose?
Open a random unfinished puzzle from one of the three games.
Compare Cat, Dog & Bird Sudoku
Cat Sudoku
- Core Logic
- Regions and the no-touch rule
- Difficulty Feel
- Most intuitive
- Best For
- Beginners and visual solvers
Dog Sudoku
- Core Logic
- Bone clues and adjacency
- Difficulty Feel
- More analytical
- Best For
- Players who enjoy clue-based deduction
Bird Sudoku
- Core Logic
- Perches, sight lines, and blockers
- Difficulty Feel
- Most layered
- Best For
- Players who enjoy multi-step logic
Frequently Asked Questions
Is Animal Sudoku the same as classic Sudoku?
Both are logic puzzles, but these games do not use numbers or a traditional 9×9 grid. Instead, you place animals by following rules based on regions, adjacency, clues, sight lines, and blockers.
Are all Animal Sudoku puzzles free?
Yes. All 780 levels across Cat Sudoku, Dog Sudoku, and Bird Sudoku are free to play online, with no download required.
Does the game save my progress?
Your current level and completed levels are saved automatically in this browser. You do not need to sign in, but browser-local progress does not automatically sync to another browser or device.
Can I play Animal Sudoku on mobile?
Yes. The hub and all three games use responsive layouts and touch-friendly controls for phones and tablets, while continuing to work in desktop browsers.