Everyone can see the panting dog – but you could have 20/20 vision if you find his master in just 11 seconds

THIS ultra-tricky illusion has even the most professional puzzlers scratching their heads in pursuit of the answer.

Everyone can see the panting dog but if you can find his master in less than 11 seconds then you could have 20/20 vision.

The image shows a happy dog wearing a leather collar but his best friend is disguised somewhere in the picture.

Have you found him yet? Here's a hint.

Try tilting the image at different angles as it might help you to see things differently.

And don't be disheartened if you haven't found the answer yet as this task is tougher than most.

It's made especially difficult as all the image is in black and white which can be more confusing to your eyes and makes the man even harder to spot.

And keep practising these picture puzzles as according 

It says: "Brain teasers will stimulate your cognitive ability and also help focus by making you concentrate on one task as a time."

Meanwhile, why not try some other challenges while you scroll?

Stick to the animal theme and spot the mouse hiding among the squirrels.

Or fancy something festive?

Give this one a try and spot Rudolf among Santa’s other reindeer.

The answer to the dog puzzle can be found below, as well as another challenge to try.

Test your visual prowess with this Christmas conundrum by looking for the hidden robin.

If you can find it the may have the 20/20 vision of a bird watcher.

This festive themed brain teaser will certainly bring you no Christmas cheer as you try to find the sneaky bird.

That's because you'll need the sharpest of eyes and the strongest of minds to even stand a chance of succeeding.