You have 20/20 vision if you spot the four leaf clover in the deck of cards

By James Evenden

You have 20/20 vision if you spot the four leaf clover in the deck of cards

THIS is the brainteaser to get you in the Christmas board game spirit as you try to spot the four leaf clover hidden in the deck of cards.

Everyone can see the cards ready to be played on Christmas day, but only those with 20/20 vision and a high IQ can spot the lucky clover in seven seconds.

The puzzle from Vape Superstore will remind you of the last time you played cards on Christmas day with a belly full of food and a glass full of booze.

You were about to go for your annual post-dinner nap, but you couldn't miss the opportunity to break out the deck.

The game started well, but you quickly realised you poured too much wine into your glass and it's starting to distract you.

Suddenly, the spades symbol is the funniest thing you have ever seen.

The lack of space between them also makes it hard to spot things.

They key to this optical illusion is to focus on the black symbols and ignore the red ones.

Are you ready, because the clock is ticking!

If you're struggling, a hint would be to start in the middle and work outwards.

People who are able to solve the puzzle quickly possess good observational skills and high cognitive speed.

It tests your ability to process a high volume of visual information and the ability to concentrate under high amounts of pressure.

Psychologists at The University of Glasgow found that staring at an optical illusion can improve eye sight by allowing you to see small print.

Escape London says puzzles can also give your mind a great workout and may "boost your brain's activity" which "reduces the risk of dementia."

These can help to stimulate several parts of the brain at the same time.

Tasks like this can also provide people with a productive way to have fun and relax.

Have you solved it? Don't worry, if you're still struggling we've included the solution to the brainteaser down below.

If you've solved that, why not try testing your mental agility on these ones?

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