- Hungarian artist Gergely Dudás, known as Dudolf, has created a festive puzzle
- It challenges viewers to find a card hidden among a pile of vibrant gift bags
- Dudas was also behind the snowman puzzle that swept the web two years ago
Published: 02:06 EST, 26 December 2017 | Updated: 02:07 EST, 26 December 2017
If you want to give your brain a bit of a workout over the festive season, then this seek-and-find puzzle might just do the trick.
Somewhere in this enormous pile of festive shopping bags, there is a single Christmas card waiting to be found.
The vibrant illustration is the work of Hungarian cartoonist Gergely Dudas, better known as Dudolf, who is responsible for a string of visual puzzles that went viral after they were shared online.
Scroll down for the solution
Festive puzzle: There is a single Christmas card hidden somewhere in this pile of presents
This latest creation is featured in his new book, Bear's Merry Book of Hidden Things, which uses colourful illustrations and seek-and-find puzzles to tell the story of a bear getting ready for a Christmas party.
While the title is aimed at children, the puzzles are tricky enough that they will keep parents entertained, too.
In this scene, Bear must find the holiday card that is lost among the colourful shopping bags.
For those looking for a clue, the card is printed with green Christmas trees.
Spotted! Only the most eagle-eyed viewers would have seen this Christmas tree card
Dudas became an online sensation after his deceptively difficult seek-and-find puzzle featuring a panda hidden among a group of snowmen swept the internet in December 2015.
He now boasts more than 100,000 followers on Facebook, where he sporadically posts creations for his fans to enjoy.
They are regularly shared thousands of times and are praised enthusiastically in the comments.
Deceptively difficult: The cartoonist went viral with this puzzle in December 2015. The Christmas brainteaser challenged viewers to find the panda hidden among the snowmen
The Easter offering released this year challenged viewers to find an Easter egg hidden in a field of tulips.
The puzzle was shared on the cartoonist's Facebook page and quickly received hundreds of comments from followers who were left scratching their heads.
One wrote: 'Took also longer than expected, but I found it'. Another said she had 'never taken so long' to complete a brainteaser.
Standing out from the crowd: The black and white bear blended in with its neighbours
The puzzle appears in Dudas' new book, Bear's Merry Book of Hidden Things, pictured
Bear's Merry Book of Hidden Things: Christmas Seek-and-Find by Gergely Dudas, published by HarperCollins, £10.99