ChessAtlas
Free chess opening trainer with spaced repetition
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| Metric | Value |
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| Domain Rating | 10 +1 (up) since last check |
| Trust Flow | 22 no change since last check |
| Citation Flow | 24 no change since last check |
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Ahrefs Domain Rating scanned 17 Oct 2026, updated 7 Oct 2026. Main topic: World/Deutsch (22). Majestic scanned 3 Oct 2026, updated 3 Oct 2026. Link stats via Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
ChessAtlas domain facts
| Domain age | 8 months |
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| Registrar | NameCheap, Inc. |
| DNSSEC | Not signed |
ChessAtlas is a free chess opening trainer that helps you memorize your repertoire using spaced repetition (FSRS), import games from Lichess and Chess.com, and automatically detect where you deviate from your preparation.
About ChessAtlas
ChessAtlas is a chess opening training platform built around spaced repetition using the FSRS algorithm. Users build their own opening repertoire, train with scientifically-proven spaced repetition scheduling, and import games from Lichess and Chess.com to automatically detect deviations from their preparation.
The platform allows players to organize lines by opening, color, and difficulty, then practice with instant feedback. It includes a curated course library and features deviation detection that automatically surfaces positions back into training when players leave their preparation in real games.
ChessAtlas is available as a free tier with 200 variations and full FSRS training, plus premium options for unlimited repertoires and advanced game analysis. The app works on iOS and Android, and supports English, French, Spanish, German, Portuguese, and Hindi.
- chess
- spaced repetition
- opening training
- repertoire builder
- fsrs algorithm
- game import
- deviation detection
Features worth knowing
- Spaced repetition with FSRS algorithm
- Repertoire builder
- Opening trainer with instant feedback
- Game import from Lichess and Chess.com
- Deviation detection
- Course library with opening courses
- iOS and Android mobile apps
- Multiple language support
Pricing
Pricing model: Freemium
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FAQ
- Is ChessAtlas really free?
- Yes, core features are completely free: build repertoires, train with spaced repetition, and import games from Lichess/Chess.com. Premium features are available for power users who want more.
- What is spaced repetition and FSRS?
- Spaced repetition is a scientifically-proven learning technique. FSRS is a modern algorithm that schedules your reviews at optimal intervals, right before you would forget. This means better retention with less study time.
- Can I import my existing repertoire?
- Absolutely. You can import PGN files from any source, or connect your Lichess/Chess.com account to analyze games and build your repertoire from your actual play.
- How is ChessAtlas different from Lichess?
- While Lichess is excellent for playing games and solving puzzles, ChessAtlas specializes in opening repertoire training with spaced repetition. ChessAtlas offers dedicated repertoire building tools, FSRS-based review scheduling, and automatic deviation detection from your Lichess games.
- Does Lichess have spaced repetition for openings?
- No, Lichess does not currently offer spaced repetition for opening training. While Lichess has opening explorer and study features, it lacks the modern FSRS algorithm that ChessAtlas uses to schedule reviews at optimal intervals.
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