A viral Reddit post has left users frustrated as they try to find a hidden dog in an image. The photo, labeled ‘difficult,’ was shared in the ‘FindTheSniper’ thread with the caption: “Find the spaniel.”

Many struggled to spot the dog, with one user admitting, “I can’t find him even with the help.” Another vented, “I was cursing out loud that there wasn’t a spaniel in this photo and that original post was f***ing with us.” Others found the challenge enjoyable, with one saying, “Loved this one I needed help lol.”

Optical illusions like this trick the brain by making objects blend seamlessly into their surroundings. The image shows a brown spaniel camouflaged among tree branches, making it difficult to see at first glance.

For those still searching, one user advised: “Most folks center their subject in the frame, so [it’s] easiest to start in the center and spread from there.” If you look at the center and slowly scan left, you’ll spot the hidden spaniel. Similar challenges, like finding a snow leopard in the mountains, continue to puzzle people online.