Kitty Cat Merge

Cats and cats will gradually fill the playing field in Kitty Cat Merge. Your task is to breed eleven breeds of cats. To do this, you will use a special playing field. Cats fall from above and if there are two exactly the same ones nearby, they merge, forming a cat of a new breed, slightly larger in size. You have to get the final rock and the task seems simple. But the field is limited in size, it is not growing, new breeds are becoming larger and there is less and less space for them in Kitty Cat Merge.