Chess is a board game.
The objective of the game is to use your Chess Pieces to defeat the other side by taking the King and Queen. It is possible to take other Chess Pieces which will help you.
The King can move to any of the squares pointed to by an arrow in the diagram on the left. The King is the main Chess Piece. The side who's King is captured, loses. The capture of a King is called "Checkmate". Checkmate happens once the King is under attack, cannont move and cannot be helped by it's own Army of Chessman.
The Queen can move any number of squares like the King. The Queen, however, cannot jump over any pieces.