Chess Opener PRO1.26.2 - App Store
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Official App Store Link
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Publisher Description
Features:
- Chess opening tree with game statistics
- The Encyclopedia of Chess Openings (ECO)
- Database of top 100+ grandmasters’ repertoires
- Stockfish chess engine analysis
- Compare ECO, opening tree and engine moves side by side in any position
- Import and export chess openings in PGN format
- Build your own opening repertoire
- Add or edit comments on moves
- Automatically classify any sequence of moves using the ECO system
- Chess opening explorer highlights moves already in your repertoire
- Chess database includes all transpositions
- Interactive trainer to memorize your chess openings and variations
- Train multiple variations at once against random opponent moves from your repertoire
- Set up a starting position for training
- Track your training progress
- Customize chessboard colors and chess pieces
- Supports dark mode
- No ads
- Works completely offline
CHESS OPENING EXPLORER
Search in the Encyclopedia of Chess Openings, browse the chess opening tree, explore the opening repertoires of famous chess grandmasters, or ask the chess engine to find the best moves. Swipe left or right to switch between the exploration features in any position.
BUILD YOUR OPENING REPERTOIRE
Add your favorite opening lines to your repertoire using the chess opening explorer or import your openings in PGN format from other chess programs. You can always edit the names of your openings and organize them in your repertoire.
OPENING TRAINER
A simple and efficient method to memorize variations of openings in your repertoire. You can train either white’s moves or black’s moves only or both. Optionally, you can train all variations at once. The trainer chooses the opponent’s moves randomly from your opening repertoire. Chess Opener tracks your progress and shows your stats.
Version History - Performance improvements
- Bug fixes 1.26.2 4d ago NEW Chess engine!
- Faster loading time
- Faster chess analysis
- Configurable CPU usage and analysis time
- Engine moves are highlighted on the chessboard
- Engine settings are now accessible from the menu bellow the engine moves 1.25.1 Jan 25 - Performance improvements
- Bug fixes 1.24.5 Jan 14 - Performance improvements
- Bug fixes 1.24.3 10/02/2025 - NEW settings: Manual dark/light app theme
- Bug fixes 1.24.0 09/28/2025 - Fixed animations 1.23.3 09/08/2025 - Performance improvements
- Bug fixes 1.23.1 07/28/2025 - App translated to German, Spanish, and French
- Bug fixes 1.22.0 10/11/2024 - Bug fixes 1.21.5 08/16/2024 - Fixed occasional app crashes when starting the training mode 1.21.4 08/08/2024 - Bug fixes 1.21.2 08/03/2024 Improved training screen:
- Final training score no longer hides the chessboard
- Share/export games and positions during training
- Toggle comments
- and more while keeping the training screen clean and focused 1.21.1 06/26/2024 - NEW: Support arrows and circles in PGN import
- Deduplicate comments during multiple imports of the same opening
- Support Apple Silicon Macs
- Bug fixes 1.20.0 03/11/2024 - Bug fixes 1.19.1 02/11/2024 - NEW: Resume training sessions after reviewing openings in the middle of training
- Bug fixes 1.19.0 02/07/2024 - Improved stability of large repertoires
- Performance improvements
- Bug fixes 1.18.1 01/01/2024 - Bug fixes 1.17.1 07/09/2023 1.17.0
- Show variation names during training (can be disabled in Settings)
- Performance improvements 1.17.0 07/03/2023 - Fixed crashes when training large repertoires 1.16.2 05/27/2023 - [NEW] PGN import from a local file
- Performance improvements
- Bug fixes 1.16.1 05/22/2023 - Fixed freezing menu when changing a name or side of a repertoire 1.15.3 12/11/2022 - Reorder repertoires
- Support split screen on tablets
- Share/export PGN to a file, message, e-mail, etc.
- Share/export position (FEN)
- Bug fixes 1.15.2 11/19/2022 - Copy or move openings between repertoires
- Select entire chapters in your repertoire for editing or training
- Bug fixes 1.14.1 10/29/2022 - Added 1000+ variations to the list of openings
- Apply opening name in headers to all variations during PGN import
- Fixed illegal promotions
- Performance improvements 1.13.2 07/09/2022 - Piece movement animations
- Mark repertoires as White, Black or universal
- Fixed PGN imports 1.12.0 03/12/2022
