Go (game)
Two players, "Black" and "White", take turns placing a "stone" (game piece) of their own color on a vacant "point" (intersection) of the grid on a Go board. Black plays first. If there is a large difference in skill between the players, the weaker player typically uses Black and is allowed to place two or more stones on the board to compensate for the difference (see Go handicaps). The official grid comprises 19×19 lines, though the rules can be applied to any grid size. 13×13 and 9×9 boards are popular choices to teach beginners, or for playing quick games. Once placed, a stone may not be moved to a different point.
Damath
The Board and Pieces
The board is similar to a checkerboard but with a twist. All even (white) tiles on the board have a mathematical symbol which dictates the operation that will be used when a player's piece captures the opponent's piece. It has numbers labeled 0-7 on its sides to determine the coordinates of the piece. Each piece of the player has corresponding values depending on what type of damath is being played. Both board and damath pieces are mostly made of thick cardboard or illustration board.