El Círculo is a game that involves a very simple mechanical force, pressure, but the results, always surprising, seem haphazard.
The circular ring is placed on a table, and different pieces will be put inside without any order or position. Then, the combination is pressed turning the screw. The pieces are moved by the pressure until they fit and the screw stops. When lifting the ring, it may happen that some parts fall down; those which remain inside will form figures that will surprise us.