Optical illusion: Only a genius can spot the odd number in 9 seconds

Online puzzles of a sort called ‘Seek and Find’ challenge a reader by providing exciting images containing the object that’s hard to locate, be it a number, an alphabet, or any kind of an animal.
These puzzles are extremely fun, as well as being highly helpful to enhance one’s critical thinking skill. They ask you to scrutinize each image closely for a pattern, imagination, and more for

hidden object detection

. Often solving these will keep your brain sharp and attentive and can give a fine keenness in observant ability among seniors, reducing the pace of

cognitive decline

as it makes them fight with that factor.
If you are eager to have a fun way test and enhance your

observation skills

, here is an exciting Seek and Find puzzle that you can use.
The challenge is simple, yet exhilarating: the grid below filled with the number 52 everywhere. However, an odd number is lurking there in this grid and is invisible from all the other numbers. Your task is to find the odd number. But wait! You have only 9 seconds to finish this challenge. Ready? Start observing the image carefully.

Scan the grid methodically, with the clock ticking away. There’s got to be that odd number-in amongst the repetitive 52s. Don’t let the grid uniformity fool you-focus on staying vigilant with your eyes peeled for anything which stands out as being different.
Have you found the number? If not, don’t worry. Take another swift glance at the image—you might just be moments from finding the invisible number.
And… that’s all. Time’s out! Put it to rest now.
Congratulations! You have a really good eye for detail and a sharp observation ability if you can identify the odd number. Don’t be discouraged if you could not identify it. It’s all about practice, and the more you practice, the faster you will become at finding the hidden objects.
Curious about the answer? Scroll down for the solution, and see where the missing odd number was lurking. Challenge yourself with more Seek and Find to boost your brainpower and have fun while at it!