You have the eyes of a cheetah if you can find the number 721 in 5 seconds!

Optical Illusion: Challenge your observation abilities by discovering the number 721 hidden in the image in 5 seconds.  

Illusion derives from the Latin verb illudere.  

Optical illusions play tricks with the brain’s perception and are regarded as one of the simplest tests to determine the attentiveness of the brain.

Neuroscientists have also utilized optical illusions to investigate how the brain perceives reality.  

It is thought that practicing optical illusion puzzles can help people enhance their problem-solving skills and lateral thinking.  

The image given above depicts a number grid filled with various numbers.  

This challenge will be a good way to test your visual skills.

The number 721 can be seen on the right side of the image.

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