One day in 2005, while searching for food, nine-year-old Phiona followed her brother to a dusty veranda where she met Robert Katende, who had also grown up in the Kampala slums. Katende, a war refugee turned missionary, had an improbable dream: to empower kids through chess–a game so foreign there is no word for it in their native language. Laying a chessboard in the dirt of the Katwe slum, Robert painstakingly taught the game each day. When he left at night, slum kids played on with bottlecaps on scraps of cardboard. At first they came for a free bowl of porridge, but many grew to love chess, a game that–like their daily lives–means persevering against great obstacles. Of these kids, one stood out as an immense talent: Phiona.