YOU have perfect vision and a high IQ if you’re able to solve this mind-boggling optical illusion in time.
This puzzle will put your brain to the test – but you only have ten seconds to locate the rogue letters.
This optical illusion consists of a pale green backdrop, with a maze of darker green Xs over the top.
But not everything is as it seems as six of these letters are in fact entirely different.
We challenge you to put your eyes to the test and spot the rogue letters within a ten-second timeframe.