In this week's show of the 77 percent, we meet the real 'Queen of Katwe', Uganda's young female chess champion whose story was turned into a Hollywood movie. When is the right time for young people to get involved in their country's destiny? DW's 77 percent TV host Edith Kimani responds, we are also in Dakar to hear how Senegal is gearing up for the 2018 Dak'Art Biennale Exhibition.