There's a secret chess game hidden in Facebook - here's how to play
Messenger has a built-in chess feature that lets you play with your friends without having to install a third-party app. It's a secret feature, and it's still a little clunky, but it works.
I've played my friend Daniel on Chess.com before (he's won every time), so I figured he'd be down for a game on Messenger.
Here's how to play: