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Longuet Labyrinth

Olivier Longuet submitted this great labyrinth-like idea for Annie Perkin's MathArtChallenge. I had missed it, but Steve Phelps, noticed, so... good for me! I added a few colored hexes as options, but just the grid is sweet. And Longuet's idea is connected to the game Hex. You can zoom in and out to change the scale.