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Built Codoro

Hey — I've been building Codoro solo since June. It's basically [chess.com](http://chess.com) but for spotting bugs: you get a short code snippet, find the bug (swipe, tap the line, or multiple choice), and an Elo-style rating adjusts the difficulty as you go. No login, no backen

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Play chess online for free on Chess.com with over 250 million members from around the world. Have fun playing with friends or challenging the computer!

Chess.com - Play Chess Online - Free Games Skip to content Play Play Puzzles Puzzles Learn Learn Train Train Watch Watch Community Community Other Other TEMPLATE#title TEMPLATE#title Search Search Sign Up Log In Help & Support English Sign Up Log In Play Chess Online on the #1 Site! Join 250+ million players in the world's largest chess community Get Started Improve Your Game with Lessons Learn with quick, fun lessons designed for players of all levels. Start a Lesson Play Chess Bots Play against unique chess personalities ranging in skill and playstyle. Challenge a Bot Level Up With

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