Billed on the box simply "A Game of Strategy" Players alternate placing disks onto a 4x4 grid, orienting the pieces either vertically or horizontally. On his turn a player may enter a piece in either direction, or the player may change the orientation of a piece already on the board. You win by getting 4 disks in a row with the same orientation. All the disks are identical, and the players draw from the pool of disks which starts at 16.