If you enjoy visual puzzles and spotting hidden details, this optical illusion is just the challenge for you. Designed to put your observation skills to the test, this mind teaser dares you to find the number 973 cleverly hidden among a sea of 975s—and you’ve got just 3 seconds to do it.
Sounds simple? Think again.
According to reports, only 1% of people with high IQs are able to detect the odd number out within the time limit. That’s what makes this illusion such a fun and fascinating test of your visual perception, focus, and attention to detail.

Why Optical Illusions Work
Optical illusions like this don’t just entertain—they stimulate your brain. By forcing your mind to look beyond the obvious, these puzzles activate areas responsible for pattern recognition and cognitive flexibility. Research even suggests that people with sharper problem-solving skills are more likely to spot anomalies in visual puzzles faster.
So, in a way, solving this illusion isn’t just a game—it’s a mental workout.
The Challenge: Find 973 Among 975s
You’ll be presented with a grid filled entirely with the number 975, except for one sneaky 973 hidden in the mix. Your goal is to find it in under three seconds.
Ready? Set your timer…
Your time starts now!

Stay calm, stay sharp, and scan the image row by row. It’s easy to get tricked by how similar the numbers look, especially when your brain starts to assume a pattern. But if you maintain your focus and resist the urge to skim, you might just beat the odds.
Why This Matters
Beyond the fun, exercises like these can enhance:
- Visual attention
- Pattern recognition
- Cognitive speed
- Mental stamina
Whether or not you spot the hidden number right away, every attempt strengthens your brain’s ability to process complex visuals and pick out important details from clutter.
Could You Find It?
If you managed to find 973 in under 3 seconds—congratulations, you’ve got a sharp eye and impressive cognitive reflexes. If not, don’t worry. These illusions are all about practice, patience, and sharpening your perception over time.
Want more brain-boosting puzzles like this one? Keep an eye out—there’s more where this came from.
FAQs
Is this optical illusion a real IQ test?
Not officially. While it challenges visual perception and cognitive reflexes, it’s more of a fun mental exercise than a certified IQ test.
What if I can’t find the number 973?
No worries! Take your time and practice. These puzzles are designed to challenge even the sharpest observers.
Can I improve my ability to solve illusions like this?
Yes. The more you engage with brain teasers and visual puzzles, the better your pattern recognition and focus become.
How do optical illusions help the brain?
They stimulate the visual and cognitive centers of the brain, improving focus, attention, and problem-solving skills over time.