Welcome back to another exciting brain teaser! Today’s puzzle looks simple, but it will test your concentration and attention to detail. In the cartoon, a young man appears to be suffering from a cold or allergies. He has tears on his cheeks and holds a white tissue against his nose, while wearing a green polo shirt and blue pants. At first glance, the two pictures appear to be exactly the same, but there is one small difference hiding somewhere between them.

Unlike puzzles with several changes, this challenge contains only one hidden difference. That may sound easy, but finding a single small detail can actually be surprisingly difficult because your eyes naturally assume the two images match. “When there is only one change hidden in the entire image, your brain easily overlooks small details.” Take your time and carefully compare every part of the pictures without rushing.

Begin by examining the man’s face, including his brown hair, eyebrows, eyes, tears, nose, and mouth. Then look closely at the tissue and his hands, paying attention to the fingers and small details. Continue down to his green shirt and blue pants, checking the collar, sleeves, clothing lines, and other shapes. Finally, scan the blue background carefully in case the hidden change is somewhere unexpected.

There is no timer, so you can take as long as you need. Look closely at both images and try to spot the one detail that does not match. “Take a deep breath, look really closely at every line, and enjoy the search!” Once you find the answer, share your guess in the comments below.