Chess Opener Lite

Dive into the world of chess openings, craft a personalized repertoire, and master opening variations with powerful tools designed to enhance your learning experience. Whether you're exploring classic strategies or building your own lines, Chess Opener gives you everything you need to sharpen your opening game.

Key Features

• Interactive Chess Opening Tree: Visualize opening lines with detailed statistics from real games.
• Encyclopedia of Chess Openings (ECO): Access the complete ECO classification system for every opening.
• Side-by-Side Move Comparison: Easily compare ECO classifications and opening tree moves in any position.
• Export Openings in PGN Format: Save and share your favorite lines effortlessly.
• Custom Repertoire Builder: Create and manage your personal opening book tailored to your playing style.
• Edit Move Comments: Add notes and insights to help remember key ideas behind each move.
• Automatic ECO Classification: Instantly identify and categorize any sequence using standard ECO codes.
• Repertoire Highlighting: The explorer shows which moves are already in your collection for smarter study.
• Comprehensive Chess Database: Includes all possible transpositions for deeper understanding.
• Interactive Opening Trainer: Practice your openings and variations efficiently against randomized responses.
• Variation Training: Train multiple branches at once, keeping your mind sharp and adaptable.
• Custom Starting Positions: Set up specific scenarios to focus on critical moments in your openings.
• Progress Tracking: Monitor your improvement over time with detailed training stats.
• Customizable Interface: Personalize the board colors and piece sets to suit your visual preference.
• Dark Mode Support: Reduce eye strain and enjoy late-night sessions with elegant dark visuals.
• Offline Functionality: Use all features without needing an internet connection—perfect for travel or breaks in connectivity.

Discover popular openings such as [ttpp], [yyxx], The Queen’s Gambit, The King’s Indian Defense, and many more with guided exploration and structured training.

CHESS OPENING EXPLORER

Search through the Encyclopedia of Chess Openings or navigate the chess opening tree to find the perfect line. Use intuitive swipe gestures to switch between exploration modes and analyze positions dynamically.

BUILD YOUR OPENING REPERTOIRE

Use the chess opening explorer to add your preferred lines to a personalized repertoire. Rename and reorganize entries anytime to keep your strategy clear and well-structured.

OPENING TRAINER

Memorize your chosen variations with a streamlined and effective trainer. Choose to train white, black, or both sides. You can also test yourself across all variations at once. The trainer selects random opponent replies from your repertoire to simulate realistic play. Your progress is tracked automatically, giving you insight into strengths and areas for improvement.

Upgrade to Chess Opener PRO

Unlock advanced features with Chess Opener PRO:

• Unlimited repertoire size
• Unlimited depth of opening lines
• 6x larger opening tree with enhanced game statistics
• Access to repertoires of top 100+ grandmasters
• Integrated chess engine analysis for deeper evaluation
• Import openings in PGN format for easy integration

What's New in Version 1.21.1

Last updated on Jun 27, 2024 — The training interface has been enhanced for better usability:

• Final training score no longer obscures the chessboard
• Option to share or export games and positions during training
• Comment toggling available while maintaining a clean training environment
• Improved visual clarity and interaction flow