Peter Heine Nielsen has been Magnus Carlsen’s head coach and second since 2013, and in an in-depth interview with IM Sagar Shah the Danish grandmaster and ChessBase author has now revealed some background on Carlsen’s World Championship match against Ian Nepomniachtchi: Nielsen reviews the critical moments of all eleven games, discusses what makes a good coach and talks about the upcoming World Championship cycle and Alireza Firouzja’s chances in it. | Photo: Hartmut Metz | Archiv