Chess Opener Lite

Explore chess openings and build your personalized repertoire while training with key variations.

Key Features

- Interactive chess opening tree with live game statistics

- Full Encyclopedia of Chess Openings (ECO) database

- Compare ECO recommendations with opening tree moves in any position

- Export your opening lines in PGN format

- Create and manage your custom opening repertoire

- Add personal notes and comments on specific moves

- Automatically classify move sequences using the ECO system

- Opening explorer highlights moves already in your repertoire

- Comprehensive chess database includes all transpositions

- Interactive trainer to memorize openings and variations

- Train multiple variations simultaneously against random opponent moves from your repertoire

- Set custom starting positions for targeted training

- Monitor your training progress with detailed statistics

- Customizable chessboard colors and piece sets

- Full dark mode support

- Fully functional offline operation

Master popular openings like The Queen’s Gambit, The King’s Indian Defense, and many others!

CHESS OPENING EXPLORER

Search the Encyclopedia of Chess Openings or navigate the opening tree. Swipe left or right to switch between exploration tools in any position.

BUILD YOUR OPENING REPERTOIRE

Add favorite opening lines to your repertoire using the explorer. Edit opening names and organize them efficiently within your collection.

OPENING TRAINER

An effective method to memorize repertoire variations. Train white's moves, black's moves, or both simultaneously. Optionally train all variations together with randomly selected opponent moves from your repertoire. Track your progress with detailed statistics.

Upgrade to Chess Opener PRO for enhanced capabilities:

- Unlimited repertoire size and opening depth

- Expanded opening tree with 6x more game statistics

- Database featuring 100+ grandmaster repertoires

- Advanced chess engine analysis

- Import openings via PGN format