An abstract strategy game for two players in which you try to line up five rings of your color to win.

To start, arrange the four 3x3 tiles randomly in a 6x6 grid. Each cell of the grid has a vertical, horizontal, or diagonal line on it. The first player places one of their rings on an unoccupied space, and the line in that space indicates the direction in which the opponent should place their ring: vertically, horizontally, or diagonally in line with the newly placed ring. If the opponent cannot place a ring in this direction because every square in this line is occupied, then the opponent can place a ring in any unoccupied square.

If you manage to place a ring between two opponent's rings, you change the opposite rings to your color. If the board is full and no one has managed to create a row of five rings in their color, the player with the largest orthogonally connected group of rings wins.