Crazy Dots and Shapes play online

Dots and Boxes is usually a two-player pencil-and-paper game.
Here comes Crazy Dots and Shapes.
In this version there are not only squares like in the old classic, but all kinds of shapes that increase the level of difficulty enormously.
1 player against the computer or 2 players against a friend or unknown online player are available.
Various high score lists, levels, invitation links for friends are integrated.
Even those who don't know the game will find their way around after the second round.
In principle, game instructions are superfluous.
Anyway, here are the complete instructions:
A turn is taken alternately.
Whoever closes a shape may make another move.
Whoever has closed more forms, has won.