Terms
Chess Tactics Trainer is a private-beta chess training tool. It is provided as-is while it is being improved.
Use
You may use the site for personal chess training if you are at least 13 years old and have an invite or account in good standing. Do not attack, scrape, overload, resell access to, or interfere with the service.
Accounts
Keep your password private. Accounts may be disabled for abuse, security risk, or beta capacity limits.
Puzzle Data
The tactics data comes from the CC0 Lichess puzzle database. This site is not affiliated with, endorsed by, or sponsored by Lichess.
Study Games
Guess-the-move game scores may come from official Lichess broadcast data licensed under CC BY-SA 4.0. Game source links and attribution are shown in the study tool. The tool selects possible study games using metadata and does not claim that a game is error-free.
Fair Funding
The project may accept donations or paid support in the future to cover operating expenses and fund continued work. Any paid offering should be a fair exchange for useful features or support, not a trick, downgrade, or pressure tactic.
No Warranty
The service may be changed, interrupted, or discontinued. Training results are informational and are not guaranteed to improve chess performance.