- Publish Date
- Friday, 10 November 2017, 12:30PM
There are several optical illusions floating around the web, but this one has people completely stumped!
At a glance, the image below shows a pattern of black, white and grey lined squares - but it has something extra hiding inside.
Can you see what it is?
There are actually 16 circles inside the picture!
Still can't see them?
Here they are!: