It’s obvious where the boxes are, but only a mastermind can spot the hidden key among them in under 9 seconds

THE seek-and-find puzzle will have you scratching your head wondering where the hidden key is – but only those with 20/20 vision will be able to solve it.

Everyone can see the boxes but only a true mastermind will be able to spot the hidden key in under 9 seconds.

In this latest brainteaser, a set of boxes of varying sizes are set up against a navy blue backdrop.

However, the key is nowhere to be seen.