1. e2e4  1... c7c5 Props to Firouzja for willingly entering super sharp territory. This is the attitude needed to win an event like this one, even if it backfired in this particular game. 2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. f2f3  6... e7e5  7. d4b3  7... c8e6  8. c1e3  8... f8e7  9. d1d2  9... e8g8  10. e1c1  10... b8d7  11. g2g4  11... b7b5  12. g4g5 All of this has been seen many times before, and it is one of the biggest mainlines of the Najdorf. Now, in modern times, people have been trying …Nh5 here, with interesting complications to follow—I played this move myself once against Areschenko in a tiebreak game at last year's World Cup. But, Firouzja goes for the old mainline. 12... b5b4 Objectively, there is nothing wrong with this move, but in practice, it strikes me as a poor choice. Black's position is very hard to play and one missed detail in preparation review, or one mistake over the board, can lead to an immediate disaster. I actually had this position myself last year against Duda, and he went down even harder than Firouzja did. Somehow it feels like the choice is impractical, even if it doubtlessly holds objectively. 13. c3e2  13... f6e8  14. f3f4  14... a6a5 