comment: White has it all: an extra pawn and a more powerful minor piece.
context: 1. b1c3  1... g8f6  2. d2d4  2... d7d5  3. c1f4 Firouzja's bread-and-butter line. 3... c7c5  4. e2e3  4... c5d4  5. e3d4  5... a7a6  6. g1f3  6... b8c6  7. f3e5  7... e7e6  8. g2g3  8... c8d7  9. f1g2  9... c6e5 This line has picked up of late. 10. d4e5  10... f6g8 Black loses a couple of tempi, but it might be worth it as long as the knight manages to comfortably attack the key e5-pawn. 11. h2h4 Aggressive prophylaxis. 11... a8c8  12. e1g1  12... g8e7  13. h4h5  13... h7h6  14. c3e2 Where's this knight going $2 The d4-outpost seems like a perfect candidate. But not the only one... 14... e7c6 Giri plays solidly. 15. c2c3  15... f8e7  16. e2c1 A very nice idea $1 White wants to overprotect his center, while discouraging the opponent's queenside play before launching a kingside assault. 16... e8g8  17. c1d3  17... b7b5  18. a2a3  18... a6a5  19. d1g4 Firouzja has got what he wanted, and Black seems doomed to passive defense. 19... g8h8  20. f1e1  20... f7f5 Nope, Giri wants to play actively $1 Alas, this is going to backfire in a spectacular fashion. 21. e5f6  21... e7f6  22. g2h3  22... d8e7 Black is ready for e6-e5, but... 23. e1e6 Very strong $1 23... d7e6  24. g4e6  24... e7e6  25. h3e6  25... d5d4 The only practical chance. 26. e6c8  26... f8c8  27. c3d4  27... c6d4  28. g1g2  28... c8d8  29. d3e5 A neat conversion. 29... f6e5 