The object of the game is to be the first player to land the fourth different shape of a row, column or square area.

Each in turn, the players will place one of their pieces on the board. It is forbidden to place a shape in a line, a column or an area on which this same shape has already been placed by the opponent. You can only double a shape if you played the previous one yourself.

The first player to land the fourth different shape in a row, column, or area immediately wins the game, regardless of who owns the other pieces in that winning move.