I can also vouch for lichess.org It's free software (https://github.com/lichess-org https://github.com/lichess-org), and you only need web browser to play [1].

I can also vouch for lichess.org It's free software (https://github.com/lichess-org https://github.com/lichess-org), and you only need web browser to play [1]. Even Magnus Carlsen and many other top Grandmasters play there. As for cheating, all games are checked for computer play, so even if you can occasionally lose a game or two from a cheater, he will be caught, and you will get back your rating points (if you care). [1] Dunno what they are using for latency adjustments on lichess, but it seems to work fine. No external software necessary, unlike chess servers of yore: https://www.freechess.org/Help/HelpFiles/timeseal.html https://www.freechess.org/Help/HelpFiles/timeseal.html