The checkered illusion facade consists of 18 pairs of black and white wings. Each pair rotates simultaneously around the same axis, which passes through their point of intersection at the bottom part of the wings, but in the opposite direction. The facade is divided in 5 rows, the 3 of which have 4 pairs and the 2 have 3 pairs of wings. Each row is controlled by a mechanism behind the plexiglass surface, that connects the black wings to one stick and the white ones to another and moreover, the sticks are connected to gears, attached to 10 analog servos. The servos are activated by 5 light sensors, one for each row,giving them the capacity to move independently.