At first glance, this winter forest scene seems incredibly easy to understand.

Snow covers the ground. Tall trees stretch toward the sky. Branches weave through the background. And standing prominently in the snowy landscape is a deer.

Your eyes probably find the animal almost immediately.

But that's exactly what makes this visual puzzle so tricky.

Somewhere within the trees, branches, shadows, and snowy spaces is the suggestion of another figure—a human face that blends into the landscape rather than standing apart from it.

It isn't presented like a traditional portrait.

There may not be a clean outline around it.

Instead, ordinary elements of the forest appear to work together to create a second image.

And once you notice the hidden figure, you may find yourself wondering how your eyes overlooked it the first time.

Can You Spot the Hidden Face?

Before reading any further, take another careful look at the winter scene.

And this time, don't focus only on the deer.

Let your eyes wander across the entire image.

Look between the tree trunks.

Study the branches.

Pay attention to the dark and light areas.

Don't automatically ignore the snow-covered spaces simply because they appear empty.

The hidden image may depend on several separate parts of the landscape working together rather than one obvious shape.

Give Yourself a Few Seconds

Don't rush.

Optical illusions and hidden-object puzzles often work because our brains try to organize complicated scenes quickly.

When we see a snowy forest, we naturally identify familiar things first: trees, snow, animals, shadows, and open space.

That can make it surprisingly difficult to notice a second image hiding in plain sight.

So take a moment.

Move your eyes slowly from one side of the picture to the other.

Then step back from the screen—or, if you're looking at a printed image, hold it a little farther away.

Sometimes changing your viewing distance can make a hidden shape suddenly stand out.

What Makes This Puzzle So Difficult?

The hidden figure isn't necessarily made from one obvious object.

That's the trick.

Your brain is accustomed to searching for boundaries. If you're looking for a person's face, you might expect to see recognizable features such as eyes, a nose, a mouth, or a clearly defined outline.

But camouflage-style visual puzzles can work differently.

Instead of presenting those features separately, the image may use tree trunks, branches, shadows, and patches of snow to suggest the shape.

Your brain has to combine those pieces.

And until it does, you're simply looking at a forest.