Sekai Saikyou Ginsei Igo is the first game in the igo game series for the Playstation released by Silver Star that features japanese voice and a challenging difficulty level. 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 secure (surround) a larger portion of the board than the opponent.