Go is a two player strategy game originating in China, and was believed to have been invented about 2500 years ago. The game is played between two players, with one player taking white, the other black.
The game board consists of either a 9 x 9, 13 x 13 or a 19x19 grid, and starts off completely empty with players taking turns placing stones on the open intersections of the board. The purpose of the game is to use your stones to surround intersections on the board, known as "territory".
Once placed on the board, stones cannot move; however, they can be captured if all of the adjacent intersections surrounding the stone are occupied by your opponent's stones. At that point, they are removed from the game.
The game ends when both players have concluded that there are no more moves of value to be made, at which point the player's territories are counted and the player with the larger territory is declared the winner