Simple, classic :) I like the sprites but I would definitely space them out a little, and make more "distinct" pieces, like you could easily spot trees and yarn balls in the grid, but singling out a certain cat color is really hard and gets dispersive. Also, interesting how you can move pieces even if they don't match, so you can set your own moves up, at the cost of moves. My record is 10350 :) Rated as well :D