Chess X-Ray

Chess X-Ray is an AI chess analysis tool that studies your own game history to find the mistakes you repeat, built for chess players who want to improve on their actual weaknesses rather than memorize generic grandmaster lines. You connect your chess.com or Lichess account without sharing a password, and it imports your games and runs them through Stockfish 17 to flag the moves that cost you the most. From there it generates personalized lessons starting from the exact position just before each mistake, so you replay your own blunders, forks, missed mates, and endgame slips one by one until you find the right move. It also produces masterclasses on the openings you actually play, and lets you browse analyses of well-known players' games without creating an account. It works across all time controls, from bullet to rapid. For players comparing the best AI for chess improvement, Chess X-Ray's distinction is that the training set is your own games, not a standard syllabus. The caveats: pricing is not shown on the main page, and because lessons are derived from your history, newer players with few games will get less to work from than someone with a long record.

Analyzing your own chess games to find recurring mistakes and training on them with personalized, position-based lessons.