Think you’re eagle-eyed? Only 40% of people can spot the number hidden in this illusion
There are two digits hiding in this image, but can you spot them?


This optical illusion may seem simple as all it asks you to do is say what’s right in front of you . . . but it’s not that easy.
Most people are unable to spot the hidden message, in fact only 40% of people can see the double digits.
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So, are you among the 40% who can see the numbers hiding in plain sight? Scroll down, give it a go and see if your eyesight is better than the rest.
Here’s everything you need to know.
What does the image show?
At first glance, the image shows a yellow and green patterned landscape of various shapes and shades.
There’s actually two digits hiding in the image and hiding in plain sight, but the question is whether or not you can identify what that number is.
The image is a stereogram, which allows you to see a three-dimensional shape while looking at a two-dimensional image.
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Don’t worry, we won’t give you spoilers yet, though the answer is written a little further down in this article.
For now, here’s another look at the image. See if you are among the 40% of people who can see the digits.


Where has the image come from?
The image has been shared by online gaming site, Rainbow Riches Casino.
What number is in the image?
If you can’t see the number hidden in the image then we have the answer for you below, but before you scroll down to see the number revealed we encourage you to take one more look at it, and bear these clues in mind.
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Firstly, it is a two digit number. Secondly, this is the number of years that a married couple have been married for when they reach their Pearl Wedding Anniversary. Thirdly, it is also the number of years that Marty McFly travelled back in time in the hit 1980s film Back to The Future.
If you can see it now then congratulations, but if you’re still not sure then look at the image below and the answer will be revealed.


The hidden number is 30.
How can I see more optical illusions?
Check out our optical illusions page for more mind-bending images. Find out if you think with your head or your heart by simply seeing which animal you can see first in this image.
If you were a fan of the Magic Eye illusions, see if you can spot the giraffe in this image, which has been inspired by those iconic illusions. Test your eyesight even further with this artist’s drawing illusion, which will also reveal something about your personality.
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If you’d like to find out which your biggest strengths and weaknesses are, then this optical illusion will tell you.
If you’re interested to know more about romance, then the first thing you see in this optical illusion also reveals what you want in a relationship. Or, if you want to see a super cute pet then see if you can spot the puppy hiding in plain sight in this TikTok video.
For all the best optical illusions, bookmark our optical illusions page and keep looking at it regularly as we update our illusion content on a daily basis.