Application Description

Master Chess Openings: Build, Train & Improve Your Repertoire

Key Features

• Interactive chess opening tree with real-game statistics
• Complete Encyclopedia of Chess Openings (ECO) integration
• Side-by-side comparison of ECO and opening tree moves
• PGN format export for openings and repertoires
• Personalized opening repertoire builder
• Move annotation with custom comments
• Automatic ECO classification for any move sequence
• Visual indicators for repertoire moves in explorer
• Comprehensive transposition database
• Interactive training system for memorizing variations
• Simultaneous multi-variation training against randomized repertoire moves
• Custom training starting positions
• Progress tracking and performance analytics
• Customizable chessboard themes and piece sets
• Dark mode support
• Full offline functionality

Master classic openings including The Queen's Gambit, King's Indian Defense, and dozens more!

Opening Explorer

Navigate the Encyclopedia of Chess Openings or browse the interactive opening tree. Easily switch between exploration modes with simple swipe gestures in any position.

Repertoire Builder

Create and organize your personal opening repertoire using the integrated explorer. Freely rename and rearrange your opening systems as your repertoire evolves.

Smart Training System

Effective memorization tool for learning opening variations. Train as White, Black, or both, with optional comprehensive variation training. The system randomly selects opponent moves from your repertoire while tracking your progress with detailed statistics.

Pro Version Upgrade

Unlock advanced features with Chess Opener PRO:

• Unlimited repertoire size and depth
• Expanded opening tree with extensive game stats
• Grandmaster repertoire database (100+ top players)
• Powerful chess engine analysis
• PGN import functionality

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