Question: Is there a tool that can analyze chess positions from images and videos on the web?

If you want a tool to analyze chess positions from images and videos on the web, Chessvision is a good all-purpose option. It includes a browser extension that scans and analyzes chess diagrams on websites as you browse. It also includes an ebook reader that converts PDF chess books into interactive documents, and a phone app that recognizes positions from printouts and digital documents. The video app shows synchronized analysis boards and move lists, and you can upload PGN files for further analysis.

Another interesting option is Noctie.ai, a personal AI chess coach that plays like a human and adjusts its playing style to your skill level. It offers real-time analysis of your moves, pointing out mistakes and suggesting training exercises tailored to your needs to improve your chess skills. That makes Noctie.ai a good practice partner for reinforcing new skills and focusing on specific areas of improvement.

Although not geared for image and video analysis, Knightly Chess offers detailed move analysis and strategic advice for improvement. It analyzes your recent games to find areas for improvement and compares your games to those of high-rated players. The service integrates with Chess.com and soon will with Lichess, so you can easily import games and get detailed reports on your chess abilities.