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 gallery exhibition "Through the Big End of the Opera Glass", printed on translucent paper with the faint inscription: "White to play and win". Grandmasters and endgame specialists have since grappled with the problem, with most concluding that there is no solution. Although Duchamp was no longer considered to be an active artist, he continued to consult with artists, art dealers and collectors. From 1925 he often traveled between France and the United States, and made New York's Greenwich Village his home in 1942. He also occasionally worked on artistic projects such as the short film "Anemic Cinema" (1926), "Box in