The goal is to place pieces on a grid so that they form a square. The player who makes a square first wins.
Players take turns placing pieces on the board.
The object of the game is to outmaneuver your opponent and be the first to outline a square, called a quod, by capturing its four corners with your colored attacking pieces. On each turn you place one attacking piece on the board. Optionally, you can place any number of blocking pieces, up to the six allotted, before placing the attacking piece. If both players run out of attacking pieces before either has made a quod, the player with the most unplayed blocking pieces is declared the winner. A winning square can be any size and orientation, and this is why playing Quod well requires strategy.