Chess Methodica provides chess training and analysis. Keep account credentials private, link only usernames you are authorized to use, and do not misuse the service, interfere with other accounts or overload analysis resources.
Puzzle Rating, skill ratings, Attack and Defense are Chess Methodica estimates. They are not official FIDE, Chess.com or Lichess account ratings. Externally sourced ratings, such as Chess.com Rapid, are identified separately. Training and engine analysis can contain errors; improvement or results are not guaranteed.
Free and Premium capabilities are described in the account experience. Eligible new accounts receive one 14-day Premium trial without automatic billing. Paid subscription price, billing interval and applicable taxes are shown at checkout. Completing a trial alone does not start a paid subscription.
Features may require connectivity and third-party services. Reasonable usage limits apply. Contact support about account problems or billing disputes. Nothing here excludes rights that cannot be excluded under applicable law.