Version 1.0 Now Available
Master Your Openings
One Move at a Time
Stop memorizing lines blindly. Practice your repertoire against an engine that knows your theory and challenges you when you deviate.
Why ChessOpeningTrainer?
We combine spaced repetition concepts with engine analysis to ensure you never forget a line again.
Build Your Plan
Upload PGNs or choose from our library of 50+ common variations. Organize your study sessions by color.
Theory Detection
Play any move. The system automatically detects if you are following your learned theory and tracks your progress.
Stockfish Partner
When theory ends, the world's strongest engine takes over seamlessly so you can play out the rest of the game.
Ready to Improve?
Streamline your opening study. It's free, open-source, and runs locally on your machine.
How it Works
- • Mark openings as "Learned" to add to practice
- • Bot follows your theory as long as you do
- • Stockfish activates when theory lines end
Pro Tips
- • Upload custom PGNs for specific lines
- • Practice "Play as Black" to test defenses
- • Focus on mastering 3-5 core openings