Chiruca, the Spanish brand of outdoor shoes, has just launched the second round of its marketing campaign on social networks. The new contest is called “Pieza a pieza,” which means “Piece by piece.” Chiruca's followers on social networks are invited to complete a puzzle online as quickly as they can. The prize is only known to those who get to the end of the puzzle. The game is available at, on the Facebook page “En Marcha con Chiruca,” as well as on Twitter at @marchaschiruca and on the brand's Youtube channel “Chirucatube.” The results, including the time that it took each player to solve the puzzle, will be published with the hashtag #piensamientochiruca. The “Pieza a pieza” campaign will run until Dec. 8.