Chess Royale

Overview:

Chess Royale is a polished HTML5 chess game featuring a smart AI opponent, complete chess rules, multiple difficulty levels, time controls, hints, undo functionality, and an Elo-style rating system.

Built with HTML5, CSS3, and vanilla JavaScript, the game offers a responsive cartoon-style interface optimized for desktop, tablet, and mobile browsers. Its modular source code, customizable graphics, adjustable AI strength, and detailed documentation make it easy to edit, rebrand, and publish on websites or HTML5 game portals.

Features:

• Complete chess rules
• Check and checkmate detection
• Castling and en passant
• Pawn promotion
• Stalemate and draw conditions
• Minimax AI with Alpha-Beta pruning
• Easy, Medium, and Hard difficulty modes
• Play as White or Black
• No-limit, 10-minute, and 15-minute matches
• Elo-style player rating system
• Three hints per game
• Undo move feature
• Draw offer system
• Smooth piece movement animations
• Legal move highlighting
• Toggleable board coordinates
• Board-flipping option
• Move, capture, check, castle, win, and lose sounds
• Separate menu and gameplay music
• Web Worker AI processing
• Player timers and rating display
• Piece-promotion selection window
• Game-over and rematch screens
• Customizable sound, animations, hints, and board settings
• Progress and settings saved with LocalStorage
• Responsive mobile and desktop design
• Touch and mouse controls
• Clean and modular source code
• Easy to customize and rebrand
• No backend or database required
• Documentation included

Platform:

HTML5