Try to arrange the vertices so none of the lines intersect. These lines are also called edges. When none of the lines intersect, then click on the "Check Solution" button. If your solution is correct, you will go to the next level.

Planarity: HowtoPlay

==ITA==
Muovi i vertici in modo che non ci siano lati sovrapposti. Puoi trovare maggiori istruzioni qui.

link: Planarity, the most addicting game!