An old puzzle from 1880 has made a comeback - and only people with the highest IQs can solve it.
Optical illusions and puzzles have always been a thing, but one tricky image from the 19th century has resurfaced to challenge people from the 21st.
The puzzle shows a horse standing in front of a woman in a doorway. A man is hidden in the picture but only those with a high level of intelligence can track him down within 15 seconds. The puzzle simply asks: "Where is the Miller?"
Read more: Fans delighted as popular Dublin bakery opens third branch
The tricky image, shared by JagranJosh, is just another fun way to test your IQ, so take a look at the optical illusion and try to spot the face of the hidden man. It has been claimed if you find the hidden face fast, it's a sign of extraordinary intelligence or a high IQ level.
Don't despair if you haven't found him by the 15th second - studies show people get better (and smarter) the more they exercise their brain with difficult puzzles.
If you are still scratching your head, trying to find the man, here's a handy tip: take a close look at the optical illusion by rotating the image where you'll be able to spot the horse rider's hidden face.
Here's the answer to the puzzle:
Let us know how quickly you found the man in the comments section below.
Read next:
Irish supermarkets hit with fruit and vegetable shortage due to weather
'We tried out a Dublin gastropub that reopened after major revamp and the food was incredible'
Shamed socialite Marcus Sweeney makes Secret Service claim in bizarre online rant
Temple Bar hotspots slammed for 'extortionate' prices as pints reach almost €10
Sign up to the Dublin Live Newsletter to get all the latest Dublin news straight to your inbox.