Online Chess Game - Play Against AI or Friend

chess match between a human and an AI.

Enhanced Chess Game

AI Difficulty: Easy (Depth 1) Medium (Depth 2) Hard (Depth 3) Expert (Depth 4)

White's Turn

00:00 / 00:00

Move History

About the Enhanced Chess Game

Welcome to this enhanced online chess game! You can play against a friend in two-player mode or challenge the AI in single-player mode. The game now includes:

• Accurate check, checkmate, and stalemate detection
• AI opponent with adjustable difficulty (Minimax algorithm)
• Pawn promotion feature
• Move history display
• Captured pieces display
• Board coordinates and last move highlighting
• Board flipping option
• Visual indicators for legal moves and captures

To play, select a mode. In two-player mode, players take turns. In single-player mode, you play as white against the AI (black). Click a piece to see its legal moves (dots for empty squares, red borders for captures), then click a highlighted square to move. Invalid moves are prevented.

The game indicates "Check!" when a king is threatened. A popup appears upon Checkmate or Stalemate.