The game of Chess is played by two armies who oppose each other on a square board or battlefield of sixty-four alternate white and black squares. Each army has sixteen men; one King, one Queen, two Rooks (or Castles), two Bishops, two Knights and eight Pawns. The Generals of the two armies are the two players themselves. The men of one side are of light color and are called White, those of the other side are of dark color and are called Black. The object of the game is to capture the opposing King. When this is done the battle is ended, the side losing whose King is captured. To understand what is meant by the capture of the King it is first necessary to become acquainted with the laws according to which the different men move on the board.