Description
Each octagonal piece features two lines, one circle line and one triangle line.
Before playing, setup the board by turning each piece until all circle lines and all triangle lines alternate horizontally and vertically as shown here:
Players choose their line type. One player is the triangle line player, the other is the circle line player. Choose a starting player. Players take turns choosing and rotating any single piece 1/8th turn. No piece may be turned twice consecutively (meaning you cannot move the piece your opponent just moved).
The first player to complete a 3 piece line of their line type, either horizontally, vertically, or diagonally wins the game.