ONLY the most eagle-eyed will be able to spot the 13 hidden faces in this devilishly difficult optical illusion.
Put your vision to the test with this tricky brainteaser, which will have you staring at your screen trying to figure it out.

Whether you’re trying to improve your sight, or test your IQ, this puzzle will prove a challenge to many readers.
Put your observation skills to the test and try and find as many hidden faces as you can within this image.
At first glance it seems that this is just an image of a man and two horses in a forest.
However, the painting titled The Forest Has Eyes, by Bev Doolittle has 13 faces hidden among the trees and rocks.
Anyone who can spot more than four faces hidden within the image, posted by Art Country Canada is said to have 20/20 vision.
The first four faces are reasonably easy to spot, as they are far bigger and clearer than the other ones.
If you are struggling to find the faces, try holding the picture further away, or squinting your eyes.
Amongst the rocks, there are two faces on the left hand side of the image, one at the bottom, and and a third to the right of the horses.
If you cast your eyes to the right of the picture you should see two more faces, across from the face at the bottom.
There are two green faces next to each other made up of rocks and grass.
[bc_video account_id=”5067014667001″ application_id=”” aspect_ratio=”16:9″ autoplay=”” caption=”Only The Most Observant Lovebirds Can Spot The Hidden Heart In This Romantic Valentine’s Brainteaser” embed=”in-page” experience_id=”” height=”100%” language_detection=”” max_height=”360px” max_width=”640px” min_width=”0px” mute=”” padding_top=”56%” picture_in_picture=”” player_id=”default” playlist_id=”” playsinline=”” sizing=”responsive” video_id=”6368115031112″ video_ids=”” width=”640px”]If you peer closely at the treeline, you should spot four faces in a row.
The last three faces are the trickiest of all to spot, as they are much smaller, and made up from the other faces.
Amongst the row of trees at the back, there is a smaller face squeezed onto the painting.
If you look to the left of the white horse you should spot another small face, and to the right of the picture, the spindly white branches make up the outline of a face.

Another tricky brainteaser features a gnarled tree but only those with high IQ can spot a sleepy cat hiding on it.
If that’s still not hard enough for you, then have a go at spotting the hidden broom amongst the clothes in less than five seconds.
Or you can have a go at figuring out the hidden message in this band’s cover art that has confused fans for years.
Lastly, puzzle fanatics have been left scratching their heads trying to find the lost feather in just 12 seconds.