context: 1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. d2d4  3... c5d4  4. f3d4  4... a7a6 The flexible Kan Sicilian... 5. c2c4 ...which will soon turn into a Hedgehog. 5... g8f6  6. b1c3  6... d8c7  7. a2a3  7... b7b6  8. c1e3  8... c8b7  9. f2f3  9... f8e7  10. f1e2  10... d7d6  11. e1g1  11... e8g8  12. a1c1  12... b8d7  13. b2b4 A tabiya for the system. In an ideal world White is preparing Nd4-b3 and the advance of the a-pawn, when c4-c5 will follow. 13... a8c8  14. d1d2  14... f8e8  15. d4b3  15... c7b8  16. f1d1  16... h7h5 Spike to the left $1 A well-known aggressive-positional approach that intends to fix some weaknesses on the dark squares. 17. e3f4  17... d7e5  18. c3a4  18... b7c6  19. a4b2  19... h5h4  20. d2e3 This is a novelty, but it should be said that Black already has a fantastic game. 20... e5g6 The white bishop lacks squares. 21. f4g5  21... b6b5 Spike to the right $1 Carlsen takes over the initiative. 22. b3d4  22... c6d7  23. h2h3  23... d6d5 The ultimate central spike $1 Whenever the Hedgy hits in this way it's almost always very bad news for the hedgehog hunters. 24. c4c5  24... e6e5 A very classical approach by Carlsen. He has managed to execute all the main ideas for the system $1 25. d4f5  25... d7f5  26. e4f5  26... g6f4  27. g5h4 Firouzja is at least nabbing a pawn. 27... f6g4 The favorable opposite-colored bishop middlegame will happen anyway. 28. f3g4  28... e7h4  29. b2d3  29... d5d4 A piece of art $1 30. e3e4  30... f4e2  31. e4e2  31... e5e4 Black is completely winning. But it goes without saying that the time control will provide us extra entertainment. 32. d3f2  32... b8f4  33. d1f1  33... f4e5  34. c1e1  34... e5d5  35. g4g5 Whenever possible, and sometimes even when not, Firouzja finds a path to the enemy king $1 35... d5f5 Solid, albeit unnecessary. 36. e2h5  36... f5h7  37. h5g4 The younger icon knows that the queens are his chance. 37... e4e3  38. g2g3  38... e3f2 And here comes a chance $1 39. g1f2  39... h7c2  40. f2g1  40... h4g5  41. g4g5  41... e8e1  42. f1e1 