Changelog

v1.3 - Data, UI Polish & AI Coach

New Features

• Lichess Support:
  • Added ability to load games directly from Lichess.org usernames.
  • Application now remembers your last used Lichess username.
• Loading Experience:
  • Implemented a Beautiful UI Loader that displays a non-blocking overlay while fetching games from online APIs (Chess.com/Lichess).
• Ending Distribution:
  • Added a new Ending Distribution chart to the Metrics Dashboard, visualizing game outcomes by type (Checkmate, Resignation, Time, Abandon).

Improvements

• AI Coach Insights:
  • Completely refreshed the AI Coach section with a cleaner UI.
  • Added a specific Refresh Button for generating insights.
  • Improved text processing to remove markdown/emojis for a professional look.
  • Added "Placeholder" state for better UX before analysis.
• Metrics Dashboard:
  • Enhanced visual styling of the Saved Games section.
• Game List:
  • Game results (1-0, 0-1, etc.) are now clearly visible in the "Select Game" dialog list.
• Data Enrichment:
  • Database now stores richer metadata including Opening, Player Ratings, Termination, and FEN.
  • Added support for saving usernames to config.json for convenience.

Bug Fixes

• Analysis Accuracy:
  • Fixed a critical bug where Checkmates were sometimes incorrectly classified as Blunders.
  • Fixed a Move Count Mismatch where "Book" moves were being double-counted in summaries.

v1.2 - UI Overhaul & Metrics Dashboard

New Features

• Metrics Dashboard:
  • Added a new Stats page providing comprehensive insights into your chess performance.
  • Overview Tab: View total games analyzed, win/loss/draw rates, and average accuracy across all games.
  • Move Quality Tab: Visual breakdown of move classifications (Brilliant, Great, Blunder, etc.) using interactive pie charts.
  • Openings Tab: Analyze your most frequent openings with a bar chart display.
• Enhanced Navigation & Aesthetics:
  • Modern Sidebar UI: Replaced the traditional top menu bar with a sleek, integrated sidebar for seamless navigation between Analyze, History, Stats, and Settings views.
  • Visual Consistency: Unified the application's look and feel with a consistent design language, improved icon set, and refined accent color usage across all panels.
  • Consolidated Load Menu: Unified game loading options into a single "Load Game" button with a dropdown menu for PGN, User, and Link imports.
• Chess.com Integration:
  • Game Selection Dialog: When loading from a Chess.com user, a new dialog now appears listing the last 5 games with details (Date, Opponent, Rating), allowing you to choose exactly which game to analyze.

User Interface Refinements

• Layout Optimization:
  • Improved the spacing and arrangement of the analysis panel to prevent UI squeezing.
  • Made the "Analyze Game" button more prominent for better accessibility.
• Visual Polish:
  • Fixed QFont warnings that were cluttering the logs, ensuring smoother font rendering in the Evaluation Bar.
  • Added a new "Exit" button to the sidebar for quick application closure.

v1.1 - Analysis Refinements & UI Fixes

New Features

• Game History:
  • Automatically saves analyzed games to a local history file.
  • Restores the last analyzed game on application startup.
  • Added "Clear History" option to the File menu.

Analysis & Classification

• New "Miss" Classification:
  • Implemented logic to identify "Missed Wins" (significant drop in win probability from a winning position).
  • Added detection for "Missed Mates" (failing to find a forced checkmate sequence).
• Accuracy Fix:
  • Resolved a bug where games containing checkmates could result in 0.0% accuracy.
  • Mate scores are now correctly converted to a capped CP value (2000) for ACPL calculation.
• "Great" Move Tuning:
  • Significantly increased the threshold for "Great" moves to a 15% win probability difference. This makes "Great" moves much rarer and more meaningful, appearing only when a move is vastly superior to alternatives.
• Accuracy Formula:
  • Reverted the accuracy formula to 100 * exp(-0.004 * acpl) to ensure consistent and familiar scoring.

User Interface

• "Best" Move Visibility:
  • Fixed a persistent issue where "Best" move icons were not appearing in the move list or on the board.
  • Updated the best.svg icon structure and renamed it to best_v2.svg to bypass potential caching issues.
  • Explicitly enforced icon sizing in the Move List to ensure proper rendering.
• Game Info Display:
  • Added a new header in the main window displaying "White (Elo) vs Black (Elo) [Result]" for the currently loaded game.

Bug Fixes

• **Fixed a NameError crash caused by a missing QSize import.
• **Fixed an AttributeError related to the removal of the game_list component.