Can YOU spot the panda hidden amongst these zig-zag lines?

An optical illusion is sweeping the Internet - and leaving online users completely bamboo-zled.

Russian artist Ilja Klemencov has hidden a giant panda amongst black and white zig-zag lines in what appears to be the latest mind-altering puzzle featuring the fluffy bear.

The clever trick-of-the-eye, titled 'They can disappear', appears to support charity conservation efforts by the World Wide Fund for Nature (WWF).

Can you see it? Russian artist Ilja Klemencov has hidden a giant panda amongst black and white zig-zag lines in what appears to be the latest mind-altering puzzle featuring the fluffy bear.

While the mammal instantly jumps out at some observers, those who are struggling to see it are advised to take a step back from their computer screens or turn it to a near 90 degree angle.

The original artwork was uploaded onto picture-sharing site Imgur by user 'matata' three years ago, but has surged in popularity again after being re-posted to Reddit.

Can you spot the panda? After Hungarian illustrator Gergely Dudás posted this image on his Facebook page, thousands of people vented their frustrations at not being able to find it.

The illustrator had Internet users competing with friends to find the animal in the shortest time possible after he posting the artwork to his Facebook page on December 16.

The original Where's Wally-style snowmen picture was liked by 42,000 people and shared 100,000 times within days, with many struggling to find the panda at all.

He followed it up days later with another picture posted online, this time of a cat hidden among dozens of brightly coloured owls.

The Hungarian illustrator often posts cartoons and mind-bending puzzles for his followers.

Dudolf told i100: 'The popularity of the 'panda' picture amazed me, I still can't believe it, but it makes me really happy! Glad to see how people like something I made.'

This was followed by Reddit contributor, with the username Oneste, who created a mind-boggling puzzle in which he hid a panda amongst rows and rows of Stormtroopers - and TIE fighter pilots.

There it is! Gergely Dudás' chameleon-esque panda is hidden in amongst hundreds of festive snowman; eighth row from the top, fourth from the right. There are plenty of red herrings with bright scarves and hats.