Optical Illusion: Find the odd letter in this image

This optical illusion has gone viral over social media and has left people scratching their heads. Netizens have found it difficult to attempt this challenge as they say they were unable to concentrate on the image for long.

So, are you ready to take the challenge? Before that let's know why optical illusions should be a part of your daily routine.

Optical illusions can be a marvelous way to exercise and keep one's brain stimulated. They play tricks on our perceptions by often making our minds perceive something that is not immediately perceivable. Some of the illusions are fairly simple, while others are more intricate and thus more challenging with a greater need for concentration. Anyhow, optical illusions present a stimulating opportunity to exercise and hone mental agility.

Some of the most mind-bending illusions involve numbers or letters hidden in a dense clutter of images or patterns. How cleverly the creators then conceal these characters, blending them in with the surrounding shapes or colours such that they become indistinguishable from the mayhem they surround, requires keen powers of observation and careful attention to detail. It becomes much tougher when there is a time limit while searching for the hidden elements. It tests both the patience and concentration of the person.

Such problems will sharpen not only the visual processing but will also enhance cognitive functions and mental endurance. These keep your mind stimulated about how to solve a problem, including critical thinking, in which the brain is trained to get used to picking out minute differences and inconsistencies. The regular engagement with these visual challenges also helps maintain the activation of the mind and can even reduce the rate of cognitive decline. Therefore, these are fun exercises for people of all ages.
Video
In this image, there is a B hidden somewhere and due to the similarity between the way R and B it is difficult to spot the odd one.