Build your chess opening repertoire.
Remember it with spaced repetition.
Store all your opening lines in one place, import your games from chess.com and lichess.org, and train them with FSRS — the same kind of memory algorithm Anki uses — so you always know exactly which move to review, and when.
One place for all your openings
Build repertoires per color on an interactive board, with variations, notes and sub-lines per idea.
Import & export
Paste PGN with variations, or automatically pull your played games from chess.com and lichess.org.
Spaced repetition (FSRS)
Every repertoire move becomes a card that comes back exactly when you need it — proven more effective than blind repetition.
Learn from your own gamesPro
Deviation analysis lays all your imported games next to your repertoire: where did you play something else, where did you have no answer ready, and how often did that happen? Add the missing move with one click.
Share your repertoires
Make a repertoire public and share the link. Others can view it, link it to train along (including your later additions) or copy it as a starting point for their own.