WHAT IS THAT : CHESS - BOXING ... ?

What is that : Chess Boxing ? (Non è pugilando con la costipazione seduti sulla tazza del cesso ! ( sintesi dell'Europa...!)__ Read & Watch : WORLD CHESS-BOXING/from The channel of worldchessboxing/YOUTUBE__ World's Champion of Chess-Boxing (from Rainews24.It)__ World Chess-boxing/from The channel of aquaclutz/YOUTUBE__