The internet isn't new to optical illusion challenges. The latest one, joining the hall of fame, which has everyone up and guessing is Japanese psychology professor Akiyoshi Kitaoka’s rendition of a portrait.
Inspite of some finding it painful to look at the image, several have taken it up as a personal challenge to uncover the face behind these black and white boxes.
While the Daily Mail asks us to "simply scroll up and down while looking at the image,” you can also try standing at a distance and looking at the illusion to see the portrait. For those who still can’t figure it out, here’s what you are supposed to be looking at.