A refined, modern chess study board and engine built with pure vanilla web standards. Features real-time engine evaluation, tactical puzzles, game analysis, customizable themes, embedded SVG piece sets, procedural Web Audio sound effects, and full FEN/PGN support, with zero external dependencies and zero build step.
- Game Modes:
- Local Pass-and-Play: Play with synchronized chess clocks and increment settings.
- Play vs AI Engine: Challenge a built-in chess engine with configurable difficulty and evaluation.
- Tactical Puzzles: Interactive puzzle trainer with blunder detection, hints, and streak tracking.
- Analysis Board: Deep position analysis with candidate moves, threat detection, and live evaluation bar.
- Position Editor: Set up custom board positions, place pieces freely, and import/export FEN strings.
- Customization & Themes:
- 6 Themes: Gentle Light, Midnight, Graphite, Warm Ivory, Emerald, and High Contrast.
- 5 Vector Piece Sets: Classic, Minimal, Modern, Outline, and Glass (crisp inline SVGs).
- Responsive board layout optimized for desktop, tablet, and mobile.
- Dynamic Web Audio:
- Real-time procedural audio synthesis using the Web Audio API for moves, captures, checks, castling, and low-time warnings.
- PGN & FEN Support:
- Move history with standard algebraic notation (SAN), step-by-step move navigation, one-click PGN/FEN import & export, and local auto-save.
- Command Palette & Keyboard Shortcuts:
- Quick actions accessible via Ctrl/Cmd + K, board flip (F), undo/redo, sound toggle (S), and fullscreen mode.
- HTML5: Semantic document structure & board container
- CSS3: Modern layouts, responsive styling, and CSS custom properties (variables) for theme switching
- JavaScript (ES6+): Vanilla client-side game state, FIDE rule validation, AI engine, and PGN/FEN parser
- Web Audio API: Real-time procedural sound effects without external audio files
- Inline SVG: Scalable vector graphics for piece sets and UI iconography