The object of Gyges is to move a piece to your opponent's last row. The catch is that no one owns the pieces. You can only move a piece in the row nearest you. Pieces are made up of 1, 2, or 3 rings; this number is also the number of spaces it must move. If it lands on another piece, it can move the number of spaces equal to that piece's number of rings. It can also displace that piece to another space. Played with tournament rules, you cannot win on an opponent's mistake, but rather only by creating a situation in which your opponent cannot block multiple winning combinations.