Olivier Longuet [url=https://twitter.com/OLonguet/status/1250143409786040320?s=20]submitted[/url] this great labyrinth-like idea for Annie Perkin's [url=https://arbitrarilyclose.com/home/]MathArtChallenge[/url]. 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.