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.
Gobblet
The game is played on a 4×4 board. Each player has 12 pieces of the same colour but different sizes. Players take turns to place a piece on the board or move their piece that already is on the board. Bigger pieces can be placed so that they cover smaller ones. A player wins by placing four pieces of the same colour in a horizontal, vertical, or diagonal row.