Rules: Pie rule

The game does not include the Pie rule. The page http://en.wikipedia.org/wiki/Hex_%28board_game%29 contains the rules.

The rule can be stated as follows:

After the first move is made, the second player has one of two options:

Letting the move stand, in which case the second player remains the second player and moves immediately

Switching places, in which case the second player becomes the first-moving player, and the "new" second player then makes their "first" move. (I.e., the game proceeds from the opening move already made, but with roles reversed.)