Can you spot what's wrong with this picture going viral?

People can gain access to a lot of interesting and at times mind boggling stuff through the internet. Baffling images have been turning into viral sensations owing to the most trivial debates on the internet for a while now, and it seems viral content similar to “the dress” just won’t stop.

The latest image to have left people baffled is that of a girl sitting on floor posted on Imgur, since it appears as if the girl has three legs. As soon as the picture hit the internet, people have been trying to figure out the mystery and many have been saying that they had to stare at the image for hours before finally solving the mystery.

So can you tell what’s wrong with the picture? Is can be anything from a girl with three legs to an optical illusion.