Bad bishop strategy in Carlsen's version of the Winawer French

A chess game between two chess giants, Anish Giri and Magnus Carlsen, at the World Blitz Chess Championship in 2022. Giri, known for his solid and positional style, opened the game with 1.e4, and Carlsen responded with the French Defense.

https://youtu.be/c51Jcl2PqZI

As the game progressed, Giri sought to exploit his opening advantage and gradually built up his position. He earned a pawn, and got a great position, but allowed Magnus to take over the game with a beautiful idea of restricting one of the white's bishops (using the strategy called "bad bishop").

White tried but couldn't break through the solid Carlsen's pawn structure, forcing Giri to play the endgame with almost dead bishop (really bad one), practically down a piece!

An excellent example of how bad it is allowing your opponent to restrict one of your bishops (for good!), and also how good it is when you restrict your opponent's piece the same way. It is often the critical advantage, almost equal to capturing a whole piece!

Found this game to be interesting to the beginners and intermediate level players for one more reason you'll find at the very end: a move before Anish stopped the clock, Magnus made almost a critical mistake (40...Kg7), but for a good reason! He saw the threat, and put a halt on his own plan, paying attention to the new matter - how to stop the opponent from achieving their goal? Even though his solution is seen from the engine's perspective as a mistake, their idea and thinking process was correct. And an example of how beginners should think as well.

Level required to understand this chess game: beginner / intermediate.