To find the letter, spectators must negotiate the illusion by searching beyond the obvious.
Using the brain's visual processing abilities, optical illusions are a fascinating combination of perception and cognition.
Exclusiveness—only 3% can recognize the 'B'—encourages individuals to test their cognitive abilities.
The 'B' can be blended into the background using shading, curves, or intersections.
Use rapid visual processing and instinct to spot the hidden letter.
Use your intellectual and visual skills to quickly decipher the illusion.
Those that spot the 'B' in the time limit are members of the 3% with a keen eye and quick intelligence for optical problems.