You are suppose to drag the dots around until no lines overlap.
Untangle 1.5 is one of many Brain Games to play online on your web browser for free at KBH Games. Tagged as Brain Games, Logic Games, Puzzle Games, and Untangle Games. Upvoted by 17 players. Other games you might like are Entangle: Reverse untangle! and Untangle. No download or installation needed to play this free game. Hope this game brings a little joy into your daily life.