Daily Star Sport reveals... READ MORE: Conor McGregor eyes Power Slap League role after offering tips on taking hits This sport packs a punch physically and mentally.
Opponents face off in alternate bouts of chess and boxing, inside a ring, until one wins either by checkmate, knockout or on points.
It began in Berlin in 2003 and has now spread globally. England even has its own champ in heavyweight Cameron Little.What's your favourite sport?
Let us know in the comments section belowThe ancient West Country sport of gut barging sees two contestants try to push each other off a 12ft by 8ft mat using only their bellies!
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