That was at rapid and blitz chess in 2004 in Reykjavik, when Carlsen was aged 13 and Kasparov 41, a year before his retirement. Chess: Carlsen fights back from brink to overcome Nakamura in 38
For internet chess, the competitive record is three moves quicker than Kasparov. Magnus Carlsen deliberately gave away his queen and resigned in four moves in the $150,000 online Chessable Masters
Aagaard. Jacob. Grandmaster Preparation - Thinking Inside the Box. Afek & Neiman. Yochanan & Emmanuel. Invisible Chess Moves: Discover Your Blind Spots and Stop Overlooking Simple Wins. Agdestein. Simen. How Magnus Carlsen Became the Youngest Chess Grandmaster: The Story and the Games.
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