Build and drill your opening repertoire
A repertoire is more than a list of moves, it is a system you trust under pressure. Chessyi combines repertoire PGN files, opening practice drills, and thousands of master games in each system so you learn both the moves and the plans.
What you get
- 66 Chessyi repertoire collections
- 166 opening-specific game databases
- Practice mode with move validation
- Engine check of your lines
- Export and save custom positions
How it works
Choose your systems
Browse repertoire and opening collections.
Drill with practice mode
Validate your moves against known lines.
Study master games
See how GMs handle the same structures.
Unique on Chessyi
- Repertoire + practice + master games, three pillars in one platform
Frequently asked questions
Related features
Drill your openings with guided move validation
Train chess openings on Chessyi with 70+ named lines, move validation, hints, arrows, and repertoire-style practice. Build muscle memory for your opening repertoire.
Study master games from the largest built-in library
Browse 1.9 million chess games on Chessyi: 141 GM databases, 166 opening collections, famous classics, and repertoire lines. Load any game on the interactive analysis board.
Import, study, and export chess games as PGN
Paste or upload PGN files on Chessyi. Step through move history, analyse with Stockfish, export positions, and study your games on a full-featured interactive board.
Ready to analyse like a master?
Open the board free, Stockfish, openings, and 1.9M games in one place.
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