You have the eyes of a hawk if you can spot the dog hiding in this vintage optical illusion in 12 seconds

A FALSE optical illusion has baffled even the most professional puzzlers.

The task is to spot a dog hiding in a vintage illusion to prove you have the eyes of a hawk – but there’s a catch.

Try to find the dog hidden in this picture

You have to find the dog within just 12 seconds to earn bragging rights – and the clock is ticking.

The painting shows a happy deer galloping through a beautiful landscape.

Although he seems to be alone at first, he is joined by his dog friend, and it is your job to find him.

This is a particularly difficult puzzle to solve because the sketch is so detailed that it allows the dog to hide behind the pencil lines.

Have you found it yet?

Don’t worry if not – we’ve included the answer below.

In the meantime, why not try some other illusions while you’re moving.

Try to find the cat in five seconds before the camera zooms out.

You have super-vision if you can “undo” this stunning spinning ball illusion.

You need 20/20 vision to spot the math symbol in this picture in just 10 seconds.

A tricky brain teaser challenges puzzles to spot the differences between two pictures inspired by romantic getaways

And you are pure genius if you spot the pencil drawing in this puzzle.

Make sure you don’t stop practicing these puzzles because not only can they give us a great sense of satisfaction, but they are also good for our brain.

We’ve said before that pictures are more than just finding and playing – some pictures can actually improve our health.

Psychologists at the University of Glasgow have discovered that looking at an optical illusion can improve vision by allowing you to see fine print.

And according to ZenBuisness, “These visual puzzles can provide you with good mental exercise, which in turn can help you think more effectively and solve problems more easily.”

Below is the answer to the deer illusion, as well as some other puzzles for you to try.