World Chess Championship

World Chess Championship is a Chrome extension that lets you play online chess against players worldwide. It’s designed for practicing real-world chess and uses an ELO-based ranking and matching system to pair you with suitable opponents. You can choose to play anonymously as a guest or sign in with your Google profile.

Review all your games and follow the top 100 rankers. The extension also includes an auto-translated chess forum, so you can discuss strategies with players from around the world.