Can you untangle the graph? See if you can position the vertices so that no two lines cross.

Number of line crossings detected: 0

0 moves taken in 0s.

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Don't worry, the game only generates solvable graphs! These are known as planar graphs.

- John Tantalo's original version of the puzzle.
- Information about the Planarity game on Wikipedia.
- Planar graph on Wikipedia.

© Jason Davies 2012.