YOU must have 20/20 vision and a high IQ if you can spot the donkey amongst the farm in less than 12 seconds.
This tricky brainteaser is bound to leave you pulling your hair out as you race against the clock.
That's because you can't afford to make any mistakes in order to succeed - so the pressure is on.
But with the sharpest of eyes and the strongest of minds, you stand a great chance of succeeding.
Even those with perfect observational skills are likely to pass this test before it gets the better of you.
And by searching every single part of this image, you stand a higher chance of finding the hidden donkey before it's too late.
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In the image provided by Depor, we can see an artistic sketch of a farm featuring a chicken, a horse and a man - who is presumably the farmer.
In the background sits a house and a windmill on top of a hill.
There are also two large trees, with one of them slumped right in the middle of the image.
But hiding in plain sight is the donkey - and it's your job to find it.
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With plenty going on the image to distract you, however, this will be no easy feat.
But if you can really focus on the task at hand, and make sure you check every square inch of the picture, then you should be able to find the donkey.
But think outside the box, as this isn't as simple as it seems.
So, without further ado, off you go - and good luck.
If you are struggling however, then we can offer you one clue to help you succeed; the horse in the background is not the donkey!
If you still can't find it, then the answer has been circled for you below.
How do illusions work?
By Tom Malley
Optical illusions are a great way to test your eyesight and cognitive skills, requiring you to really think about and observe what's in front of you.
More often than not, players are required to find something hidden within an image that can't immediately be found on a first glance.
But the more you stare at it, the more your brain tries to help you find the answer.
What you see and what you think you see are two completely different things, but your senses gather information and send it your brain.
Your brain then creates a perception with this information, whereby it fills in gaps when there is incomplete information, or creates an image that isn't even there.
This reaction is actually a survival instinct.
Our brains have evolved to quickly work to piece together any information it can get, before doing its best to figure out the rest.
So when you're looking at an optical illusion, your brain works with what it's got to develop a reality in order to help you see the answer in the image.
If that was too easy for you, then why not have a go at one of our many other optical illusions?
That includes trying to spot the hidden broom amongst the clothes in less than five seconds.
But be warned, as this new puzzle isn't easy and will challenge even the most experienced players as they race against the clock.
If that's still not hard enough for you, then have a go at finding the hidden snake amongst the tortoises in less than ten seconds.
Only those with sharp eyes and incredible observational skills can spot the hidden animal in this picture in this mind-bending optical illusion.
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Alternatively, you can try and outsmart everyone by finding all 15 hidden kittens in this tricky brainteaser.
Everyone can quickly see two kids, but only those with 20/20 vision can find all the cats before it's too late.