You Can Play Chess in a Hidden Facebook Chat Game

A simple command line opens up the Game of Kings.

Chess Blog by Grandmasters

There's a game hidden in Facebook Messenger, in case you want to play - HelloGigglesHelloGiggles

Guide to All Facebook Hidden Games, How to Find and Play Them - Gizbot News

Chess 4 (4 Player Chess) – Fancy Chess

You can unlock a hidden Facebook Messenger chess game with this secret command

You Can Play Chess on Facebook Messenger

How to Play the Secret Chess Game in Facebook Messenger

Do you have Facebook Messenger? There's a hidden command to play chess on there

Play Hidden Chess Game on Facebook Messenger

There's a Secret Chess Game in Facebook Messenger

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