1. Partners sit opposite one another. Play alternates counter-clockwise around the board.
2. No partner is limited to any one sector of the TWIXT board: partners may play the two ends of a common barrier, or they may build independent sectors on any part of the board. Partners may not communicate strategies to one another by any form of signaling.
3. Once, and only once in each game, one partner of either team may call out, "Privilege!"after making his own move. On claim of Privilege, the opponent who would ordinarily move next must yield his turn to the other member of the "Privileged" team, giving the Privileged team two successive plays.
The player to move next will be the partner of the opponent who yielded his turn. If the opponents have not been defeated by the Privilege move, they may take their own Privilege at that point or later in the game.
Privilege is invoked primarily for defensive reasons. If this option is carefully planned by well-matched teams, it can make Double TwixT a fast, challenging game.