The artist behind some of the most tricky puzzles on the web is back with an underwater-themed brainteaser.
Hungarian cartoonist Gergely Dudas is challenging the internet to find a fish hiding among the octopuses.
The fish is cleverly disguised alongside octopuses of a similar hue to it.
Dudas first drove the internet mad trying to find a panda among a group of snowmen, then he challenged people to pick out a cat blended into rows of owls.
He created an Easter-themed puzzle that involves an egg cleverly disguised alongside a group of bunnies.