Poster displaying the biannual human chess match in Marostica © Flickr user Alaskan Dude under Creative Commons.
From Wikipedia's Marostica:
After the Second World War, the comedy writer Vucetich Mirko authored a play in which "Two noblemen, Renaldo D'Anganaro and Vieri da Vallanora, fell in love with the beautiful Lionora, daughter of the local lord, Taddeo Parisio. As was the custom at that time, they challenged each other to a duel to win the hand of Lionora. The Lord of Marostega, not wanting to make an enemy of either suitor or lose them in a duel, forbade the encounter. Instead he decreed that the two rivals would play a chess game, and the winner would have the hand of Lionora.
"The loser of the chess game would also join the family, through marrying her younger sister, Oldrada. During the play the game takes place on the square in front of the Lower Castle with supporters carrying the noble ensigns of Whites and Blacks, in the presence of the Lord, his noble daughter, the Lords of Angarano and Vallonara, the court and the entire town population. The Lord also decides the challenge would be honoured by an exhibition of armed men, foot-soldiers and knights, with fireworks and dances and music".
More images: 'chess Marostica'