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Fifteen-year-old Jack from London has been crowned champion at the UK Pokémon Championships.

The grand final of the video game competition was held in Manchester on Sunday.

After a close three-battle final, Jack came out on top in the 12 to 15-year-old division.

He will now compete against the top kids from across the globe in the World Championships.

Newsround caught up with Jack after his win, to find out what it takes to become UK champion.

Pokémon is the second most successful video game of all time, just behind Nintendo's Mario.

More than 20 billion trading cards have been printed, and 400,000 people enter tournaments across the world every year.

Eight-year-old Charlie also competed in the Championships on Sunday. His whole family play the video game - apart from mum Sharon.

She told Newsround what it's like living with a family of superfans.