• The game starts on an empty board. Players move in turn to place one stone on an empty cell. White moves first. The second player is entitled to a swap.
  • The game is won by the first player to complete a ring or a bridge or a fork. All of these are 'chains': closed connections of one color.

    • A ring is a chain around at least one cell. The center cell can be empty or occupied.
    • A bridge is a chain linking two corners
    • A fork is a chain linking three sides. Corners do not belong to either side