
Master chess openings, build a winning repertoire, and hone your opening skills with this comprehensive app.
Key Features:
- Interactive Opening Tree: Explore a vast chess opening tree with detailed game statistics.
- ECO Integration: Seamlessly navigate the Encyclopedia of Chess Openings (ECO) system.
- Side-by-Side Comparison: Compare ECO codes and opening tree moves directly.
- PGN Import/Export: Easily import and export your openings in PGN format.
- Customizable Repertoire: Create and manage your personal opening repertoire.
- Annotated Moves: Add and edit comments on moves for personalized learning.
- Automatic ECO Classification: Automatically classify any move sequence using the ECO system.
- Repertoire Highlighting: The explorer highlights moves already in your repertoire.
- Comprehensive Database: Includes all transpositions for thorough analysis.
- Interactive Trainer: Memorize opening variations efficiently.
- Multi-Variation Training: Train multiple variations simultaneously against randomized opponent moves.
- Customizable Training: Set a starting position for targeted training.
- Progress Tracking: Monitor your training progress with detailed statistics.
- Customizable Interface: Adjust chessboard colors and pieces to your preference.
- Dark Mode Support: Enjoy a comfortable dark mode experience.
- Offline Functionality: Works completely offline, perfect for on-the-go learning.
Learn popular openings like the Queen's Gambit, King's Indian Defense, and many more!
Opening Explorer:
Search the ECO or browse the opening tree intuitively. Easily switch between exploration features in any position.
Repertoire Builder:
Add your preferred opening lines to your custom repertoire. Edit opening names and organize your repertoire for optimal strategy.
Opening Trainer:
A streamlined method for memorizing opening variations. Train white's, black's, or both sides' moves. Train all variations at once, with opponent moves randomly selected from your repertoire. Track your progress and review your stats.
Chess Opener PRO (Upgrade):
Unlock enhanced features:
- Unlimited repertoire size and opening depth.
- Expanded opening tree (6x larger) with game statistics.
- Database of 100+ grandmaster repertoires.
- Powerful chess engine analysis.
- PGN import functionality.