About Chess Prep Pro Openings
Chess Prep Pro is the ultimate chess openings app, designed to perfect your openings and elevate your game through custom chess opening repertoire creation and training. How does it work? Chess Prep Pro allows you to...
Chess Prep Pro is the ultimate chess openings app, designed to perfect your openings and elevate your game through custom chess opening repertoire creation and training.
How does it work?
Chess Prep Pro allows you to create your own custom chess openings repertoires, and prepare for any opponent move. A chess opening repertoire is an opening plan that contains player responses for opponent moves in the opening phase of the game. With a chess opening repertoire, you will not be left scrambling to find the best move during a real game, as you will already remember the best move from studying and practicing your repertoire.
Discover Chess Prep Pro's Features:
- Custom Chess Opening Repertoires: Build unlimited custom repertoires for any chess opening. Add as many moves and variations as you need to be prepared for every game.
- Repertoire Training: Sharpen your memory with chess opening repertoire training. The app challenges your memory with random positions from your opening repertoire, tracking your progress and helping you master every move.
- Blind Spot Finder: Stay ahead of your opponents with our blind spot finder feature that analyses your chess openings repertoire against billions of player games, identifying the most likely opponent moves that you did not prepare for.
- Chess openings player database: You can use a player openings database that contains billions of moves to find out the most likely opponent move to prepare for.
- Advanced Engine: Utilize the latest StockFish engine for in-depth analysis and uncover the best responses to any situation on the board.
- Downloadable opening repertoires: Expand your opening knowledge with an ever-growing library of specially created and sourced opening repertoires, curated for your success.
- Import / Export: Easily import and export PGNs to and from the app. You can even import liches studies.
Master your chess openings now !
Previous Versions
Here you can find the changelog of Chess Prep Pro Openings since it was posted on our website on 2025-10-22 13:54:15.
The latest version is 1.9.4 and it was updated on 2026-06-18 09:38:10. See below the changes in each version.
Chess Prep Pro Openings version 1.9.3
Updated At: 2026-06-07
Changes: - Reduce app crashes and freezes.
- Up to 50% faster import of PGNs and repertoire loading.
- Other small fixes and optimisations.
Chess Prep Pro Openings version 1.9.4
Updated At: 2026-06-07
Changes: Even faster repertoire loading, especially for larger repertoires.
Added engine evaluation bar in analysis screen. It is on by default when the engine is on but you can turn it off in the settings.
Chess Prep Pro Openings version 1.9.1
Updated At: 2026-03-09
Changes: Addressed an issue with opening statistics not loading due to a recent change in the Lichess opening explorer database authentication. Users can now manually connect the app to the Lichess database to retrieve statistics for all positions. This restores functionality for features such as the Opening Book, Smart Trim, and Blindspot Finder.
Chess Prep Pro Openings version 1.8.14
Updated At: 2026-03-01
Changes: Small bug fixes and updates
Chess Prep Pro Openings version 1.8.12
Updated At: 2025-11-08
Changes: Small bug fixes and improvements.
Chess Prep Pro Openings version 1.8.11
Updated At: 2025-10-25
Changes: Added an option to train only the main lines when multiple correct player moves exist (for example, in imported PGNs with several variations). You can adjust this in Training Settings before starting a session.
Disclaimer
Official Google Play Link
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