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Chess Opening Repertoire Builder

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Chess Opening Repertoire Builder screenshot 1
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Chess Opening Repertoire Builder

BRANE · Published by BRANE

Positive — 82% positive (33 reviews)

Last updated 28 Sept 2026

Learn chess openings and try them out against an AI instantly!

Free to PlayDJCTQ l

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Free To Play, Sports · 2024 · More free games

Dive into Chess Opening Repertoire Builder, a free-to-play sports game from BRANE set for release in 2024. Master various openings and test them against the AI right away.

About this game

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About the Game

Chess Opening Repertoire Builder or CORB is a chess app/game extracted from chess career simulation game Master of Chess.


You can play against AI in opening of your choice



It is designed as a helping tool for expanding, better understanding and training of your chess opening repertoire.

Features

  • Expand your opening repertoire via graph display of opening lines
  • Annotate moves in the graph
  • Search through official openings database
  • Test your knowledge of different openings by solving opening quizes
  • Play Chess Matches from preselected positions

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • OS *: Windows 7
  • Processor: Intel Core i5-4690K
  • Memory: 4 GB RAM
  • Graphics: Integrated Graphics
  • Storage: 500 MB available space

Recommended

Recommended:
  • OS: Windows 10
  • Processor: Newer Intel

Supported Languages

English*
*languages with full audio support

Latest news

  • Patch NotesOfficial

    Zoom + general update

    There's been plenty of work and updates on Master of Chess game, but I finally got a moment to update CORB. Added Zoom! Let me know if you encounter issues or need more features.
    Read full article on Community Announcements (BRANE)
  • AnnouncementsOfficial

    Master of Chess is released to Early Access!

    The big poppa of this game is released to Steam Early Access! This little tool was created as an extracted feature from my dream game, a chess career simulator - Master of Chess. It's finally out now on Steam: https://store.steampowered.com/app/2248900/Master_of_Chess Give it a try and let me know what you think!
    Read full article on Community Announcements (BRANE)
  • Patch NotesOfficial

    Added Import PGN!

    I thought it would be a simple thing but it turned out that having Import PGN functionality required some extra work. I think I managed to pull it off. Let me know how it works!
    Read full article on Community Announcements (BRANE)
  • Patch NotesOfficial

    Small bug fixes

    - Switched the AI ELO selection to be a dropdown - Fixed the weird bug where new players would have the board oriented as black and completely misaligned - Fixed the initial selection of showing AI lines to true
    Read full article on Community Announcements (BRANE)
  • Patch NotesOfficial

    First QOL improvements and bugfixes

    First week of CORB's life on Steam has passed. I've got numerous suggestions on how this tool can be improved and I've added few changes: Added board orientation switching on openings graph screen Saving the game settings for your second playthrough Added searching for openings by playing the moves on the board Fixed bug with AI not being restarted fast enough when ELO is changed on match screen Added "turn off AI suggestions" feature for correspondence players Added resizing of opening move info panel
    Read full article on Community Announcements (BRANE)

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