Black Jack, originated in France, has spread to the rest of the world, has a long history. Now in the casinos around the world can see twenty-one point, with the development of the Internet, twenty-one began to network era. The game is played by two to six people, using 52 cards other than the size of the king, the players goal is to make the hands of the number of points and no more than 21 points and as large as possible.