Optical Illusion: Do you have the sharpness to uncover the sneaky 828 hiding among 858s??

Test your visual acuity with this challenging optical illusion! A grid of 858s hides a single 828, designed to trick your brain’s pattern-recognition abilities. Success requires patience and focused scanning, offering a mini brain exercise that hones attention and problem-solving skills. Can you spot the difference in under 15 seconds?