Chess Rules – Learn How to Play Chess

Core Objective

Chess is won by checkmating the opposing king. Every move must leave your own king safe. If a move exposes your king to capture, it is illegal and the board will reject it. Master these rules and you can play chess online with confidence.

Special Moves

• •Castling moves the king two squares toward a rook, then places that rook on the square the king crossed. It is only legal if neither piece has moved, the path is clear, and the king does not move through check.
• •En passant lets a pawn capture an adjacent pawn that has just advanced two squares, as though it had moved only one. The right exists only on the immediately following move.
• •When a pawn reaches the last rank, it must promote. Queen is common, but underpromotion to rook, bishop, or knight is sometimes best.

How Games End

• •Checkmate: the king is under attack and there is no legal move to escape.
• •Stalemate: the side to move has no legal move but is not in check, so the game is drawn.
• •Draws can also occur through repetition, insufficient material, or other rule-based dead positions.

Practical Formats

This site lets you play chess online in two formats: AI training or local two-player games from the standard starting position. It is ideal for quick study, simple sparring, and browser-based analysis of basic chess lines.