https://en.wikipedia.org/wiki/Go_(game)#Notation_and_recordi...
Relevant thread on the Unicode mailing list, with Subject "Purpose of and rationale behind Go Markers U+2686 to U+2689" is here: https://unicode.org/mail-arch/unicode-ml/y2016-m03/thread.ht...
I'm curious about this. Was your post removed for containing certain unicode characters?
https://news.ycombinator.com/item?id=24851415
https://en.wikipedia.org/wiki/Go_(game)#Notation_and_recordi...
Relevant thread on the Unicode mailing list, with Subject "Purpose of and rationale behind Go Markers U+2686 to U+2689" is here: https://unicode.org/mail-arch/unicode-ml/y2016-m03/thread.ht...