Marcel Duchamp the Broken Arm", followed soon after. His "Fountain", a urinal signed with the pseudonym "R. Mutt", shocked the art world in 1917. "Fountain" was selected in 2004 as "the most influential artwork of the 20th century" by 500 renowned artists and historians. In 1919, Duchamp made a parody of the "Mona Lisa" by adorning a cheap reproduction of the painting with a mustache and goatee. To this he added the inscription "L.H.O.O.Q.", a phonetic game which, when read out loud in French quickly sounds like ""Elle a chaud au cul"". This can be translated as "She has a hot ass,"
Marcel Duchamp which he studied for the rest of his life to the exclusion of most other activities. Duchamp is seen, briefly, playing chess with Man Ray in the short film "Entr'acte" (1924) by René Clair. He designed the 1925 Poster for the Third French Chess Championship, and as a competitor in the event, finished at fifty percent (3–3, with two draws), earning the title of chess master. During this period his fascination with chess so distressed his first wife that she glued his pieces to the board. Duchamp continued to play in the French Championships and also in the Chess Olympiads