Best bet is to take a screenshot and report via the following link: https://support.chess.com/customer/portal/emails/new
Another option is to block chat as soon as something like that happens. You can also block the user if you feel it's necessary.
Hi everybody,
I hope this isn't a spam, I've looked in the forum and didn't find a subject about reporting players, so I'm posting my question here.
I just started an online blitz game, my openent messaged insulting me ... I disconnected, even if I lost points, but I can't play with a disrespectful person. I want to report him, what can I do?
Thanks for your answers!