You Can Play Chess in a Hidden Facebook Chat Game

A simple command line opens up the Game of Kings.

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

How to Unlock the Secret Chess Game in Facebook Messenger • iPhone in Canada Blog

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You Can Play Chess on Facebook Messenger

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

Facebook Messenger Has a Hidden Chess Game; Here's How to Get Started

Bing Chat has some hidden features, such as a way to play chess and more - Neowin

There's a secret game hidden inside Facebook Messenger - here's how to play CHESS on the chat app - Irish Mirror Online