- 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 MindSports applet is not yet suited to handle the pie rule - so unless players are willing to make a slight detour, white moves first.
The detour is this: If two players decide to use a pie, white moves first too. If black decides to accept it as his first move, he declines the challenge (the usual way: by choosing 'resign' in the command menu) and starts a new game with the same move.
- 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
- A bridge is a chain linking two corners
- A fork is a chain linking three sides. Corners do not belong to either side
That's it. In 'New Rules for Classic Games', Wayne Schmittberger states that a ring should surround at least one vacant cell.
This is not the case: the cell may be occupied by either player.
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