At the very beginning of the game image is mixed into small pieces.
The aim of the game is to as quickly as possible and in less number of moves to collect the whole picture. Once all the parts of the image will be in place, you can see the whole picture.
A dog"s sense of smell is one of the keenest in nature. If a pot of stew was cooking on a stove, a human would smell the stew, while the dog could smell the beef, carrots, peas, potatoes, spices, and all the other individual ingredients in the stew.