Tell SQC which public chess account to check.
This is the activation key: add at least one public Lichess or Chess.com username so SQC can verify your quest from public games. No chess-site password, no OAuth link, just the public name.
Sign in, then add one chess username.
Once a username is saved, return to any quest and press the checker. SQC will look at your latest public games and tell you whether the quest passed, failed, or still needs another try.