Carlsen's 4.c4 in the Caro-Kann Advance Variation

At the FIDE World Cup 2021 Magnus Carlsen surprised his opponent Vladimir Fedoseev in the Caro-Kann Advance Variation (1.e4 c6 2.d4 d5 3.e5 Bf5) with the move 4.c4. Jan Werle analyses this brilliant game in ChessBase Magazine Extra #203 in a video and pays special attention to the opening. Is Carlsen's idea a good attacking weapon against the Caro-Kann? Take a look at an excerpt from Werle's video analysis!

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