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Brain meets brawn: How London Chessboxing is using Twitch to grow

Chess boxing scores a knockout, Gallery

Chessboxing, boxing and chess board game being played alternately as part of a new surreal sport, Islington, London, UK Stock Photo - Alamy

Chessboxing Triumph in London

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In chess boxing, hitting your opponent isn't just legal, it's required - The Globe and Mail

Chessboxing, boxing and chess board game being played alternately

Liberal Democrat activist 'knocks out' UKIP MEP in Brexit-charged ' chessboxing' match – Hackney Citizen

Daniel Lizarraga and Vladimir Makarov in the ring during the News Photo - Getty Images