Stop forgetting your prep mid-game.
Built by Aren Emrikian, a Candidate Master and former World Youth Chess Champion (Under-8, 2017), and Henry Liu, formerly ranked in the top 100 nationally for his age group.
We kept forgetting our own prep mid-game. Using Lichess or Chessbase to study, we couldn't actually quiz ourselves - the best we could do was play through our own lines with one hand covering the screen so we couldn't see the next move coming.
Here, you play out an opening's moves to save it, then it quizzes you on it until you know it. It also scans your entire repertoire to find the single move you're most likely to blunder, not just schedule reviews one line at a time.
Free, no ads, no account required to try it.