Porquerolles Puzzle for Marion L. birthday.
The puzzle is a 12 pieces puzzle with a picture of Porquerolles island.
The puzzle's difficulty is set to 1 by default.
It can be changed by set to 2 difficulty=2 to the query params of URL.
difficulty should be a number between 1 and 5.
The puzzle can be solved at loading by adding cheat=true or cheat=1 to the query params of URL.