Comment by nakedneuron

sorry for not providing explanations, but check this out: https://tromp.github.io/cl/diagrams.html

did you see https://news.ycombinator.com/item?id=42256394 (The Art and Mathematics of Genji-Ko 172 points, by olooney, 49 days ago, 10 comments)? very tangentially related, but also mesmerizing stuff, i think..