Go (碁) is a strategic board game for two players, more commonly known as Igo (囲碁) in Japan. On October 11, 2009, an Igo Festival was held in the Roppongi Hills Arena in Tokyo.
Go originated in ancient China more than 2,500 years ago.
In Japan, the game became popular at the Japanese imperial court in the 8th century, and among the general public by the 13th century.
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.
The object of the game is to control a larger portion of the board than the opponent.
A stone or a group of stones is captured and removed if it has no empty adjacent intersections, the result of being completely surrounded by stones of the opposing color.
Today, Japan has some of the best professional Igo players in the world.