One cat per color, row and column. Cats can’t touch, even diagonally. Journey is one long run: win to climb a level, lose and try that level again on a new board. Daily race is one attempt at each size, the same board for everyone. Free play lets you pick a size, and the difficulty mixes itself. Tap for an X, double-tap for a cat. Tap a cat to say hello, double-tap it to take it back. A wrong cat costs one of your 3 lives. A run of right cats scores more, and a wrong cat or a hint starts the run again. A board comes with 1 to 3 hints at 96 points each. Past that, a hint sets the board’s points to 0, and you can still finish it. Drag to mark several, or drag from an X to erase. Arrow keys, space and enter work too, and delete takes a cat back.