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.
Snails produce a colorless, sticky discharge that forms a protective carpet under them as they travel along. The discharge is so effective that they can crawl along the edge of a razor without cutting themselves.