OSLO, Norway (AFP) – Chess superstar Magnus Carlsen for the first time openly accused American Hans Niemann of cheating Monday, saying the rising star had done so more recently and more often than he previously admitted. The chess world has been shaken for three weeks by the Carlsen-Niemann controversy, since the 31-year-old five-time world champion withdrew from the Sinquefield Cup in the US after losing to Niemann, 19. Last week, the Norwegian’s abrupt withdrawal from […]