| Feature | Works on Proxy? | Notes | | :--- | :--- | :--- | | | Poor | High latency makes it unplayable for Blitz/Bullet. | | Daily (Correspondence) | Yes | Turn-based play is fine. | | Puzzles | Sometimes | Static puzzles load, but rating updates may lag. | | Video Lessons / Library | No | Streaming video via proxy is impossible. | | Chat & Clans | Rarely | Real-time WebSocket connections fail. | | Mobile App | No | Proxies are for browsers only. |

If you are a tournament player trying to practice openings during a free period, a proxy will ruin your flow. The lag will cause you to lose games you should have won.

If you just want to check your daily correspondence move without using data on your phone, a proxy is a quick, free solution.

A: The proxy blocked the JavaScript or WebGL canvas. Find a different proxy or switch to "Basic View" in Chess.com settings (if you can navigate there).

A: It is safer than a random unknown mirror, but no free proxy is 100% safe. Use a unique password and log out immediately.

A: Don't. Finish your exam. Chess will be there when you graduate. Disclaimer: This article is for educational purposes regarding network technology. Bypassing school or work firewalls may violate your local policies. Always prioritize your education and job security over your chess Elo rating. Play responsibly.