This latest brainteaser wants you to try and spot the children's toy hidden among the teddies, dinosaurs, trains, cars and spaceships... so can you spot the doll? Photo / Channel Mum
Forget Wally - where on earth is Dolly?
In this eye-popping puzzle there is a solitary doll waiting to be found.
The latest brainteaser wants you to try and spot the children's toy hidden among the teddies, dinosaurs, trains, cars and spaceships, Daily Mail reports.
The festive challenge was created by online mothers' community, Channel Mum.
Their spokeswoman said: "At first glance, it looks like every mum's nightmare - the scene of living room chaos following the opening of the Christmas presents.
"It's very tricky, but it shouldn't take longer than your average wrapping paper clean-up."
So how long did it take you to spot her?
Another puzzle that baffled the internet this week showed Good King Wenceslas becoming Good King Wences-lost.
In the popular carol, the kind-hearted ruler and his page head out into the snow to deliver winter fuel to a poor villager.
But in this brain-teaser he has lost his way amid a forest of pine trees, so can you spot him?
His loyal page - at the bottom of the picture, by the village - is about to set out on his quest to find his master and the creators of the puzzle are calling for internet users to help him find the King.
A spokesman for Optical Express, who created the puzzle, said: "Having good vision won't necessarily help you solve our mind-melting puzzle, but it will give you a head start."
This festive puzzler is the latest to sweep the web. Earlier this week, an image that appeared to show pink and red starfish of different sizes along with green seaweed floating around them had a hidden airplane waiting to be spotted.
The new picture puzzle came from Travelbag and asked people to spot the object not typically found underwater.
To make things even harder, the plane is perfectly camouflaged.
If you need a hint: the airplane is the same colour as one of the starfish.
But the question is, which one?
Another Christmas brainteaser showed rows and rows of knitted jumpers, hats and scarves - but hidden between them is a bucket and spade, which internet users struggled to spot.
The bucket and spade are exactly the same colour as the other items in the image, making them very tricky to spot.
The company behind the puzzle, HolidayGems.co.uk, say the puzzle represents the winter sun you could enjoy if you're planning to jet off on holiday anytime soon.
These pictures are just two in a long line of brainteasers frustrating the internet.
An image of a ballet dancer hidden among a flock of flamingos also left the internet well and truly stumped.
The mind-bending puzzle features dozens of the brightly-coloured birds against a green background but the figure hidden among them is deceptively difficult to spot.
Internet users are claiming to spend anything from 30 seconds to five minutes trying to locate the dancer, which is well hidden due to her bright pink dress. So can you spot her?