Master chess openings with the same algorithm that powers Anki. Study smarter, not harder.
Explore our curated library of 50+ openings. Filter by color, style, or search for specific lines.
Select the openings you want to learn. Build your personal repertoire for White and Black.
Review positions with spaced repetition. The algorithm schedules cards at optimal intervals.
The same algorithm that powers Anki, adapted for chess. Reviews are scheduled based on your performance — harder cards appear more often until you master them.
50+ hand-picked main lines covering every major opening system.
See your retention rate, daily streaks, and which openings need more work.
Practice anywhere. Touch-friendly board designed for phones and tablets.
No free trial. No hidden fees. Cancel anytime.
$4.17/month, billed annually
Join thousands of chess players who study smarter, not harder.