Wish there was a counter, something to tell you "this is puzzle #N". Also, it would be good to know that there are only 20 from the start. "Puzzle #N/20"? Shoul

Wish there was a counter, something to tell you "this is puzzle #N". Also, it would be good to know that there are only 20 from the start. "Puzzle #N/20"? Should be easy mods to make. Anyway, apart from that, oddly satisfying to flatten those graphs! Also - you can still move the vertices even after you achieve the flattened state. I found that usually when flatness was first reached, the graph would be kind of scrunched up. You can keep adjusting to achieve maximal symmetry if so inclined.