New Delhi, Aug. 2 -- A new optical illusion on social media has left users scratching their heads. This tricky visual puzzle, created by the well-known illustrator Gergely Dudas, also known as Dudolf, asks viewers to find three plain, uncarved pumpkins hidden in a sea of Jack-o'-lanterns. Sounds easy? Think again.

Dudolf's art is packed with details, and this latest challenge is no different. The scene is filled with dozens of grinning pumpkins, all carved with spooky faces, triangle eyes, and jagged mouths. Somewhere among them, though, are three ordinary pumpkins, no faces, no carvings, just quietly blending in. The goal is to spot all three in under nine seconds.

What makes this puzzle so tough is how cleverly the uncarved pumpkins a...