Features
Powerful tools for chess opening mastery
Debutus uses modern learning science and spaced repetition to make mastering chess openings effective and convenient.
Spaced Repetition
Optimize your learning with the scientifically proven FSRS algorithm for long-term retention
Custom Openings
Add your favorite openings to practice and build your personal repertoire
Progress Tracking
Basic daily statistics: track how many lines you reviewed each day
Sync with Lichess and Chess.com
Find your games where studied theory appeared and analyze their application
Practice Mode
Train move sequences after initial learning for better retention
Computer Analysis
Analyze your played games with Stockfish to find mistakes and improve your play
How It Works
Start mastering openings in 3 simple steps
Add Openings
Browse and add unstudied openings to your personal collection
Set Difficulty
Choose difficulty levels for each opening based on your expertise
Practice & Track
Practice regularly and watch your mastery grow on the dashboard
Join Our Community
Stay updated with news and updates on our social networks
We share useful chess tips, update announcements, and answer your questions
Download Debutus
Available on iOS and Android
Get Debutus on your preferred platform and start improving your chess openings today.