♔ ZenChess Opening Trainer Site Updates Updates: Engine analysis, master database, arrow and circle drawing

Nov 12, 2025 Updates

• Lichess Game Integration - Added feature to check your repertoire against your Lichess games. It will show you where the move you played in your game diverged from your repertoire. Chess.com integration coming very soon!

September 28, 2025 Updates

• Fixed Move Tree rendering - Resolved visual display bug where moves from different variations incorrectly appeared as branching options at the same position. Move tree now properly allocates vertical space based on branch complexity to prevent overlapping.

September 26, 2025 Updates

• Fixed systematic training

September 24, 2025 Updates

• Systematic Training Speed Improvements - Massive performance optimizations for systematic training! Fixed database scalability issues that were causing 10+ second delays with our growing user base. Systematic training now responds in under 2 seconds consistently, regardless of repertoire size or move color.
• Discord Community - Join our new Discord server to connect with other chess enthusiasts, share opening ideas, get help with training, and stay updated on new features. Click the Discord icon in the top-right corner!

January 2025 Updates

• Export Repertoires to PGN - You can now export your repertoires as PGN files! Click the blue "Export PGN" button on any repertoire to download your opening lines in a format compatible with Lichess and other chess software.
• Mobile Improvements - Enhanced mobile experience with better touch controls, responsive board sizing, and a new tabbed interface for move lists on smaller screens.
• Right-Click Training Fixed - Fixed the bug where starting spaced repetition training from the right-click context menu would show "no repertoire selected". Training from context menus now works properly.
• Training Loading Indicator - Added loading indicator when starting training sessions on mobile devices. Also prevents multiple training sessions from being queued if you tap the button multiple times.
• Statistics Fixed - Training statistics now properly track all training modes including random and spaced repetition. Opening names display cleanly without "Auto-added:" prefix. Your accuracy percentages will now update correctly as you train.

More updates coming soon! Check back regularly for new features and improvements.