Chess: Humiliated Magnus Carlsen eliminated from his own tournament

3715: Ian Nepomniachtchi v Hikaru Nakamura, Carlsen Invitational 2021. What was the Russian champion’s winning white move which induced resignation, and why did Nakamura give up?

3715: Ian Nepomniachtchi v Hikaru Nakamura, Carlsen Invitational 2021. What was the Russian champion’s winning white move which induced resignation, and why did Nakamura give up?

source https://www.theguardian.com/sport/2021/mar/19/chess-magnus-carlsen-on-the-brink-of-elimination-from-his-own-tournament