How to Play Cat Sudoku
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.
Elapsed time 0:00
Place one cat in every row, column, and color. Cats cannot touch, even at the corners.
The rules on a small board
- 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.
- Fill every row, column, and region. Place exactly one cat in each row, each column, and each colored region.
- Keep the cats apart. Two cats cannot touch, even at the corners. Diagonal neighbors are too close.
- 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.
A way to start
Look for a color that only has one square in some row. That square is often forced. After you place a cat, cross out the squares it rules out so the next forced cat is easier to see. The easy board above is a 6×6 if you want to try that before a larger grid.
Today’s shared puzzle is on cat sudoku daily. Larger boards are on cat sudoku hard.