free trial


Well they do offer a 30 day money back guarantee to first time premium purchasers. This article gives the chess.com view but of course what they don't say is they hope you forget about the 10 days so they can charge your card. It's just the way internet commerce works (although even then you still have the 30 days to change your mind).
https://support.chess.com/customer/portal/articles/1444921