Ready to challenge your brain and test your attention to detail? This optical illusion IQ test is designed to do just that! The image above features a grid filled with the number 7, but hidden somewhere among them is a lone number 1. Your mission? Find it within 7 seconds!
At first glance, all the numbers look the same, especially due to the font style and consistent alignment. But look closely if you can spot the 1 quickly, it’s a sign of strong visual acuity and mental sharpness. The number 1 subtly blends in with the surrounding 7s, making this a tricky yet rewarding challenge.
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Optical Illusion IQ Test: Are You A Genius? Within 7 Seconds Spot The Number 1 among 7
This optical illusion IQ test challenges your ability to detect subtle differences under time pressure. The image is filled with the number 7, arranged in a grid to confuse your eyes and make pattern recognition harder.
But hidden somewhere among all those 7s is a single number 1 your goal is to find it within 7 seconds. The visual similarity between the numbers 1 and 7, especially in certain fonts, makes this deceptively tricky.
The shape of the 1 blends in easily with the rest, testing your focus and attention to fine detail. If you managed to spot the number 1 in time, congratulations!
You’ve got excellent visual perception. If not, don’t worry these illusions are a fun way to strengthen your concentration and observational skills.

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Optical Illusion IQ Test: Are You A Genius? Within 7 Seconds Spot The Number 1 among 7 - Solution
In this optical illusion IQ test, your task was to spot the number 1 hidden among a sea of number 7s, all within a time limit of just 7 seconds.
At a quick glance, the numbers appear nearly identical due to the font style and uniform spacing, making it difficult for the eye to pick up on the odd one out. However, upon careful observation, the number 1 can be found in the bottom-left corner of the image.
It has a straight vertical line with no diagonal stroke, which differentiates it from the surrounding 7s. The number has been circled in red for easy identification.
If you managed to find it quickly, you’ve got great visual focus and pattern recognition skills. If not, no worries—these illusions are excellent for training your brain to spot subtle differences faster over time.
