Read the board in layers
- Scan rows and columns. If every cell but one is ruled out, the remaining cell must hold a cat.
- Scan each color. Every connected colored region needs exactly one cat, even when it bends across rows.
- Follow the automatic paws. Placing a cat rules out its row, column, region, and every neighboring cell.
Use marks, not guesses
Mark cells with the paw tool as you eliminate them. Switch to the cat tool only when a placement is certain. On touch screens, you can also long-press a cell to place a cat. Every generated puzzle on this site can be solved through a chain of certain moves.
Try it as you read.
The daily board is the easiest place to learn, and each hint reveals a logically certain next move.