Catdoku

Tap a square once for an X (no cat there), twice to place a cat. Long-press to place a cat straight away.
Every row, every column and every color patch gets exactly one cat.
Cats need personal space: they can never touch, not even diagonally.
A rule-breaking cat costs one of your 9 lives. The board tells you exactly which rule you bent.

📱 Tap for X, tap again for cat · long-press for cat⌨️ ← ↑ → ↓ Space X C

🎯 Objective

Fill the board so every row, every column and every colored region holds exactly one cat, with no two cats touching diagonally, before your nine lives run out.

📊 How you score

Your score is the highest level you have solved on the 800-level ladder. Boards grow from a cozy 5x5 up to a fiendish 10x10, and past level 300 the ladder loops back through the harder end of every size again. Every level can be cracked by pure logic, no guessing ever needed.

💡 Tips

Start with the smallest color patches: a patch with only one or two free squares often forces a cat immediately.
Use X marks (or the auto-paws assist) to record squares a placed cat rules out. What is written down cannot be forgotten.
If a color patch fits entirely inside one row or column, the rest of that line can be crossed out even before you know the exact square.
Never guess. Every board has exactly one solution, and the hint paw can always point you to the next forced move.

What are the rules of Catdoku?

Place exactly one cat in every row, every column and every colored region. On top of that, no two cats may ever touch, not even diagonally. Fill the board without breaking a rule and the level is solved.

Do Catdoku levels ever require guessing?

No. Every one of the 800 levels has exactly one solution and is verified to be solvable by pure step-by-step logic. If you are stuck, the hint paw points at the area where the next forced move hides.

What happens when I place a cat in the wrong spot?

The board freezes and shows you exactly which rule the cat broke, highlighting the conflicting row, column, color patch or touching neighbour. Each mistake costs one of the level's nine lives; lose all nine and the level is over. If a level gets away from you, the reset button clears the board and hands your nine lives back.

How many levels does Catdoku have and do they get harder?

There are 800 levels. The first 300 grow from 5x5 to 10x10, with the logic getting steadily deeper inside each size. From level 301 the ladder revisits 7x7 through 10x10 with tougher boards that always demand at least one deeper deduction, not just the basics. Every level also has its own written walkthrough if you want the full solution.

Catdoku

🎯 Objective

📊 How you score

💡 Tips

Today’s best

How tough was Catdoku?

More like this

Minesweeper

Panda Patch

Daily Wordle