Chinese Weiqi -- it is an ancient board game for two players that is noted for being rich in strategy despite its simple rules.

The game is played by two players who alternately place black and white stones on the vacant intersections of a grid of 19×19 lines. Once placed on the board, stones cannot be moved elsewhere, unless they are surrounded and captured by the opponent's stones. The object of the game is to control (surround) a larger portion of the board than the opponent.[Photo/Xinhua]