This free browser chess game plays a full, standard game of chess with all the usual rules — castling, en passant, pawn promotion, checkmate detection — available either against a second player on the same device or against a built-in computer opponent for solo practice. Moving a piece is as simple as clicking it and then clicking the square you want to move it to.

For players who want something looser than a strict tournament game, there's an optional chaos mode that layers unpredictable twists like explosions, mines, and poison onto the standard board, turning familiar openings into much less predictable territory. Whether you're studying openings seriously or just want a quick casual match, both the standard and chaos rule sets are available from the same board.