Gergely Dudás‘ viral works of art feature adorable cartoon animals and whimsical drawings. But they also challenge people to pay attention to details with hidden images.

He’s released three books of brainteasers: one of holiday puzzles called “Bear’s Merry Book of Hidden Things,” a Halloween-themed book called “Bear’s Spooky Book of Hidden Things,” and his latest, “Bear’s Springtime Book of Hidden Things.”

Here are 14 of his puzzles. Can you solve them?


Can you find the cat hiding among bats in this spooky Halloween brainteaser?

Foto: Where’s the cat?sourceGergely Dudás/Dudolf

Hint: It’s the only creature without wings.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


The cat is in the bottom left-hand corner.

Foto: There it is.sourceGergely Dudás/Dudolf

It blends in seamlessly with the rest of the bats, but it's hiding there on the left.


There's a mouse hiding among mushrooms in this viral brainteaser. Can you spot it?

Foto: Where's the mouse?sourceGergely Dudás/Dudolf

There's a mouse somewhere in this field of autumnal mushrooms.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


The mouse is peeking out from behind a mushroom with an orange cap.

Foto: There it is.sourceGergely Dudás/Dudolf

It's on the left side of the image.


Somewhere in this image of a flock of toucans is a lone penguin. Where is it?

Foto: Where's the penguin?sourceGergely Dudás/Dudolf

The penguin is there somewhere.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


It's there on the right.

Foto: There's the penguin.sourceGergely Dudás/Dudolf

The penguin has a grey face with a white belly, while the surrounding toucans have white faces and grey bodies.


Can you spot the baby chicken in this Easter-themed brainteaser?

Foto: Can you find the baby chicken?sourceGergely Dudás/Dudolf

There's a small chick hidden among eggs and rabbits.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


It's on the left if you look closely.

Foto: There it is.sourceGergely Dudás/Dudolf

The baby chick seems like just another Easter egg, but you can see its face if you look closely.


Here's a crowd of cats with their tails sticking up, camouflaging a lone bunny's long ears. Can you spot the bunny?

Foto: Can you spot the bunny?sourceGergely Dudás/Dudolf

There's a bunny hiding in there.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


Here's the solution.

Foto: There it is.sourceGergely Dudás/Dudolf

The bunny is hidden by the surrounding cats' tails, but it's the only creature with long ears instead of pointy ones.


Can you find the lollipop in a sea of ice cream?

Foto: Can you find the lollipop?sourceGergely Dudás/Dudolf

Find the lollipop.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


The lollipop's round, pink top blends in seamlessly with the ice cream scoops, but the stick it rests on gives it away.

Foto: There it is.sourceGergely Dudás/Dudolf

It's in the top right corner.


Dudás created two images of a picnic scene with seven differences between them. Can you find them?

Foto: Both images side by side.sourceGergely Dudás/Dudolf

The two picnic scenes feature various animals eating ice cream, kicking balls around, and enjoying the summer weather.


Here's the first image close up.

Foto: Before.sourceGergely Dudás/Dudolf

And here's the second one with seven changes.

Foto: And after.sourceGergely Dudás/Dudolf

Did you find the seven differences?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


Here's the answer:

Foto: The solution.sourceGergely Dudás/Dudolf

1. The dash in the "Ice-Cream" sign disappears.

2. The rabbit in the bottom left corner has one more scoop of ice cream.

3. The rabbit at the top slightly left of center faces a different direction.

4. "Differences" is missing an "f."

5. The bear in the top right corner has one less scoop of ice cream.

6. The pattern of stripes on the awning changes, starting with a white stripe instead of red.

7. The rabbit towards the bottom right is holding ice cream.


One of these tigers doesn't have a twin — can you spot which one?

Foto: Which tiger is the odd one out?sourceGergely Dudás/Dudolf

There are 25 tigers shown against a blue background with different patterns of stripes - 12 pairs of twins that each have matching stripes, and one tiger that doesn't have a match.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


This tiger's pattern of stripes is unmatched by any of the others.

Foto: That's the one.sourceGergely Dudás/Dudolf

Of 12 pairs, the fourth tiger in the fourth row from the top is the odd one out.


This World Cup-themed puzzle contains a hidden soccer ball surrounded by an enthusiastic crowd of pandas. Where is it?

Foto: Can you find the ball?sourceGergely Dudás/Dudolf

There's a soccer ball in there somewhere.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


It's on the Croatia side of the crowd.

Foto: There it is.sourceGergely Dudás/Dudolf

The soccer ball was on Croatia's side in the final match against France.


Can you find the heart among the elephants?

Foto: Here is the puzzle of the heart among the elephants.sourceGergely Dudás - Dudolf/Facebook

There is a heart there, we promise.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


It blends in with butterflies and elephant ears, but it's there.

Foto: There's the heart.sourceGergely Dudás - Dudolf/Facebook

The small heart is hiding near the ears of a pink elephant.


Where's the card in a pile of gift bags?

Foto: Here's the gift bag puzzle.sourceGergely Dudá /HarperCollins

Hint: the card is red.

Do you see it?

If not, that's okay.

Keep trying.

If you want to see the solution, keep scrolling.

Last chance to turn back!


Do you see the green bag with the candy canes — in the fourth row all the way on the left side? Count eight cards to the right, and you'll see it.

Foto: The card is there.sourceGergely Dudás/HarperCollins

It's towards the top right corner.


Can you find the magic wand among the cluster of Halloween candy?

Foto: Where's the magic wand?sourceGergely Dudás/Dudolf

With Halloween on its way, Dudás shared one of the illustrations from "Bear's Spooky Book of Hidden Things" to see if people could spot a magic wand hidden within closely-packed Halloween candy. Can you find it?


The wand looks like another piece of candy, but it has a star on top.

Foto: There it is.sourceGergely Dudás/Dudolf

It blends right in.


There's a star hidden somewhere in these Jack-o'-lanterns. Can you find it?

Foto: Can you spot the star?sourceGergely Dudás/Dudolf

Dudás shared another illustration from "Bear's Spooky Book of Hidden Things," this time with a hidden star.


Its tell-tale shape gives it away.

Foto: There it is.sourceGergely Dudás/Dudolf

The star almost looks like another eye or mouth on a jack-o'-lantern.


Can you find the snowman hidden in the snowflakes?

Foto: Where's the snowman?sourceGergely Dudás/Dudolf

There's a snowman in there somewhere.


The other snowflakes have smiling faces, but only one has a body with buttons attached.

Foto: There it is.sourceGergely Dudás/Dudolf

It's located on the left side towards the top.