Chess Opener Lite

Master Chess Openings, Develop Your Repertoire, and Train Key Variations

Key Features

• Interactive opening explorer with game statistics
• Complete Encyclopedia of Chess Openings (ECO) coverage
• Side-by-side comparison of ECO and database moves
• PGN export functionality for all opening lines
• Personal repertoire builder with unlimited customizations
• Move annotation and commenting system
• Automatic ECO classification for any move sequence
• Visual indicators for moves already in your repertoire
• Comprehensive database including all transpositions

Training Features

• Interactive opening trainer for memorization
• Multi-variation training against randomized repertoire moves
• Custom starting position setup
• Detailed progress tracking and statistics

Customization Options

• Adjustable chessboard and piece designs
• Dark mode support
• Completely offline functionality

Learn essential openings including The Queen's Gambit, The King's Indian Defense, and other classical systems!

Chess Opening Explorer

Browse the Encyclopedia of Chess Openings or explore move statistics. Effortlessly switch between different analysis modes with intuitive swipe controls.

Personal Repertoire Builder

Create and organize your opening repertoire with our comprehensive explorer tool. Edit opening names, rearrange systems, and customize your chess preparation.

Opening Training System

Our scientifically-designed trainer helps you master openings through active recall. Choose specific sides or train all variations simultaneously against randomized responses from your repertoire. Comprehensive progress tracking highlights areas needing improvement.

PRO Version Unlocks Additional Features:

• Unlimited repertoire size and depth
• Expanded opening tree with detailed statistics
• Database of 100+ grandmaster repertoires
• Advanced chess engine analysis
• PGN import capability