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.
The Duke (board game)
Each player begins game with three pieces: two "footmen" and one eponymous "duke" tile. Each piece, a flat, wooden tile (known as "troop tiles") has its movement options graphically portrayed on its two sides, giving it alternating movement options based upon which side of the piece is currently facing upwards. Pieces are moved to either an unoccupied square or one occupied by an opponent's piece, which is then captured and removed from play. Each turn, players must move a piece, place another piece on the board, and use any special powers if applicable. The objective in a standard game is to capture the opponent's duke, by first placing the duke into "guard", a condition paralleling check in chess.