ADVANCE FOR USE SATURDAY, MARCH 8 - In this photo taken on Feb. 8, 2014, Sartell High School and University of Minnesota computer science graduate David Hanson poses for a photo in in Sartell, Minn., as he shows the iOS version of his game, "Shuffling Sheep" that was released Jan. 9, 2014. The game was inspired by classic children's strategy-based board games, specifically one called "Shuttles," released in 1973. But it's challenging enough to keep adults interested. (AP Photo/The St. Cloud Times, Kimm Anderson) NO SALES
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