Magnus Carlsen wanted to go knock on Hans Niemann’s hotel door and confront the brash 19-year-old grandmaster. A few hours before he had experienced this rage within, the World No 1 had lost a game in a second consecutive tournament to Niemann, who was already bragging about replacing Carlsen at the top of the chess pyramid. In that game at the Sinquefield Cup, Carlsen felt like he was not playing a human adversary. Niemann was, in Carlsen’s assessment, many notches below him in the pecking order and yet was defeating him without expending too much effort. “Magnus talked about knocking on Hans’ door and asking him, ‘Tell me, what’s going on’?” Henrik Carlsen, Magnus’ father says in a new Netflix documentary ‘Untold: Chess Mates’. It digs into the 2022 chess cheating scandal, where Carlsen accused Niemann of winning by unfair means. The 74-minute-long documentary tries to unravel that very question four years after the controversy—what went on in that game between Niemann and Carlsen. And largely comes up with no new answers. Carlsen’s allegations were …