1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. e2e3  3... e7e6  4. b1d2  4... c7c5  5. b2b3  5... f8d6  6. c1b2  6... e8g8  7. f1d3  7... b8c6  8. e1g1  8... d8c7  9. c2c4  9... c5d4  10. e3d4  10... c8d7  11. f1e1  11... f8d8  12. c4c5 That is the thing, Aronian seizes loads of space on the queenside.  12... d6f4 Black is trying to keep his bishop as active as he can. 13. g2g3  13... f4h6  14. a2a3  14... g7g6 After somewhat weakening the enemy kingside,  Firouzja fianchettoes his bishop. 15. b3b4  15... h6g7  16. a1c1  16... a8c8  17. b4b5  17... c6e7  18. a3a4 White's queenside play is strong and  easygoing. 18... d7e8  19. c1c2 However, somewhere around here Aronian starts to  over-maneuver. 19... e7f5  20. d1e2  20... c7b8  21. b2c3  21... h7h5 Firouzja, on his turn, does  everything that he can to generate play on the opposite wing. 22. e1a1  Too slow. 22... h5h4  23. a4a5  23... h4g3  24. h2g3  24... f6h5 Now that White's kingside is weaker,  Aronian has to be careful. 25. d2f1 As he is! 25... h5f6  26. a1b1  26... f6e4 Brilliant play by the young Iranian! He finds counterplay  almost out of nowhere. 27. d3e4 This plays into Black's hands. 27... d5e4  28. e2e4  28... a7a6 The point behind the first pawn sacrifice. 29. b5a6  29... e8c6 Suddenly, the slumber is over for the bishop and the black  pieces are ready to follow his lead. 30. e4e2  30... b8a8 Very nice! Black is  fully prepared for counter-attack. It all happens so fast. 31. f1e3  31... b7a6  32. d4d5 The only defense which at least trades some  important black attackers. 32... f5e3 Firouzja is on fire and does not want to let his opponent get away easily. 33. e2e3  33... d8d5  34. c3g7  34... d5h5 Black is instantly bringing one more piece into the attack,  threatening mate in the process, but this is inaccurate! 35. f3h2 And Aronian replies a-tempo, missing a fantastic opportunity. 35... g8g7  36. f2f3  36... c8h8  37. b1b6  37... a8d8 Now Firouzja's attack is running by  itself. 38. c2d2  38... d8f6  39. b6b2  39... h5h3  40. f3f4  40... h8h5  41. h2g4  41... h3h1  42. g1f2 The culmination of the attack coincided  with the most severe time-trouble. 42... g6g5 Obvious... 43. e3e5 Aronian can breath again! 43... f6e5  44. g4e5  44... c6d5  45. f2e3 