I'm new to stack exchange, and I was wondering: how do I insert a PGN? I want to use them to show different openings, review moves, etc.
The basic mechanism is described in the links in this post. I wish there was a way to put this in the "Help" section for Chess.SE, but I'm not sure if it's possible to add site-specific help information to individual sites.
(I know this is basically a link-only answer, but it doesn't seem to make much sense to me to recapitulate in this answer a bunch of info that's well described elsewhere. I'm also not sure if the question itself is considered a duplicate question, because the question and answer I've linked is on Meta...)