Chess Opening Repertoire Builder
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About Chess Opening Repertoire Builder
Chess Opening Repertoire Builder, or CORB, is a chess app for building, understanding and training your opening repertoire. You can play against AI in an opening of your choice.
Opening tools
- Opening line graph: expand your repertoire through a graph display of opening lines.
- Move annotations: annotate moves in the graph.
- Opening database: search an official openings database.
- Opening quizzes: test your knowledge of different openings by solving quizzes.
- Preselected positions: play chess matches from selected positions.
Frequently asked questions
Yes. Chess Opening Repertoire Builder is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for Chess Opening Repertoire Builder are: Windows 7, Intel Core i5-4690K, 4 GB RAM, 500 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Chess Opening Repertoire Builder is a single-player game.
Mostly, yes. Valve rates Chess Opening Repertoire Builder as Playable on the Steam Deck: it runs, but may need some manual setup.
Yes. Chess Opening Repertoire Builder is the full base game. You need nothing else to play it.











