Chess

Online chess allows you to play the classic strategy board game directly in your web browser against a computer opponent or a friend on the same device. Chess is a two-player strategy game played on an 8×8 board with 32 pieces, where the goal is to checkmate your opponent’s king.

Chess is played by over 600 million people worldwide, making it the most popular board game in history. Since the 2020 Netflix series “The Queen’s Gambit,” online chess participation has surged by over 400%, with platforms like Chess.com surpassing 150 million registered users.

This version features a built-in AI opponent with 5 difficulty levels, from complete beginner to an advanced engine that evaluates thousands of positions per second. All processing happens in your browser with zero downloads required.

How to Play Chess Online

1. Select your difficulty level (Beginner through Unbeatable) and choose White or Black
2. Click a piece to select it — legal moves are highlighted on the board
3. Click a highlighted square to make your move
4. The AI responds automatically (thinking time varies by difficulty)
5. Use the move history to review the game, or click Undo to take back a move
6. When the game ends, start a new one — your session record tracks wins, draws, and losses

Key Features

5 AI Difficulty Levels. Beginner plays random moves. Easy captures material when possible. Medium uses 2-move lookahead. Hard adds positional evaluation with piece-square tables. Unbeatable searches 4 moves deep with full evaluation — roughly 1600–1800 ELO.

Legal Move Highlighting. Click any piece to see exactly where it can move. Dots mark empty destination squares, and colored borders indicate captures. No more guessing whether a move is legal.

Full Chess Rules. Every standard chess rule is supported: castling (kingside and queenside), en passant, pawn promotion with piece selection, threefold repetition, the 50-move rule, stalemate, and insufficient material draws.

Move History. Every move is recorded in standard algebraic notation. Review the game at any point or use Undo to try a different strategy.