1. d2d4  1... g8f6  2. g1f3  2... b7b6  3. g2g3  3... c8b7  4. f1g2  4... g7g6 The double fianchetto is perhaps better than its reputation. It's a strategically risky system because it doesn't directly fight for control of the center with the pawns, unlike what would happen with …e7-e6, which supports the …d7-d5 advance. 5. c2c4  5... f8g7  6. e1g1  6... e8g8  7. d4d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] The critical move. 7... b8a6  8. b1c3  8... a6c5  9. f3d4  9... e7e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] 10. d4b3 [%c_effect b3;square;b3;type;GreatFind;persistent;true] The most challenging move. 10... d7d6  11. b3c5  11... b6c5 A difficult choice. 12. a2a3 Preparing the break on b4. 12... f6d7 Preparing the f7-f5 advance. A natural move and a theoretical novelty. 13. e2e4  13... f7f5  14. b2b4 White has a small advantage here, which is normal in these pawn structures reminiscent of the King's Indian, but Black has his chances and the position is unbalanced, which I imagine is what Carlsen was looking for against a solid player with a classical opening repertoire like Fridman. 14... b7a6 This is a very difficult move and I'd hardly think about it. Which doesn't mean it's bad, in fact the opposite is more likely when I don't understand a move. But the important thing here is to highlight a moment in which Carlsen plays in a different way than almost all other chess players. 15. d1d3  15... a6c8 It takes a lot of class to bring the queen to d3 and then return the bishop. 16. c3a4 This move looks a little weird before finishing development, but it's perfectly playable. 16... d7f6 [%c_effect f6;square;f6;type;GreatFind;persistent;true] 17. f2f3 [%c_effect f3;square;f3;type;GreatFind;persistent;true] White has to take defensive measures. 17... c5b4  18. a3b4  18... f5f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] 19. a4c3  19... g6g5  20. g3g4 [%c_effect g4;square;g4;type;Inaccuracy;persistent;true] This move gives Black the initiative. 20... h7h5  21. h2h3  21... h5g4  22. h3g4  22... f6g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] Carlsen had already made a similar sacrifice in his game against Erigaisi. 23. f3g4  23... c8g4 The idea is to simply remove the bishop and advance the pawn to g4. 24. g2h3  24... d8d7  25. h3g4  25... d7g4  26. g1f2  26... g4h4  27. f2e2  27... g5g4  28. e2d1  28... f4f3  29. d1c2 [%c_effect c2;square;c2;type;Mistake;persistent;true] 29... f3f2 The pawns keep moving. 30. d3e2  30... f8f3 [%c_effect f3;square;f3;type;GreatFind;persistent;true] A move of the highest class. 31. c1e3 [%c_effect e3;square;e3;type;Mistake;persistent;true] 31... a8f8  32. a1a7 Creating a trap that Carlsen falls into. 32... g4g3 [%c_effect g3;square;g3;type;Mistake;persistent;true] This move throws away the win. Black has two winning moves. 33. a7a8 [%c_effect a8;square;a8;type;GreatFind;persistent;true] Carlsen certainly missed this move. 33... f8a8  34. e2f3  34... h4h3 [%c_effect h3;square;h3;type;GreatFind;persistent;true] 35. f1h1  35... a8f8 [%c_effect f8;square;f8;type;GreatFind;persistent;true] The only move to justify Black's play. 36. h1h3 [%c_effect h3;square;h3;type;Mistake;persistent;true] 36... f8f3  37. e3f2  37... f3f2  38. c2b3  38... g3g2  39. h3g3 An important position. 39... g8f7 [%c_effect f7;square;f7;type;Mistake;persistent;true] 40. c4c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] 40... g7f8  41. b3c4  41... f8h6  42. b4b5  42... d6c5  43. d5d6 [%c_effect d6;square;d6;type;GreatFind;persistent;true] 43... c7d6  44. b5b6  44... f2b2  45. b6b7  45... b2b4  46. c4d5  46... b4b7  47. g3g2 This endgame is objectively a draw, as the pawns are blocked and White is active. 47... b7b6  48. g2a2  48... b6b3  49. a2a7 [%c_effect a7;square;a7;type;Mistake;persistent;true] A mistake, after which Carlsen shows superb technique to convert the advantage. 49... f7f6  50. d5c4  50... b3b4  51. c4d5  51... h6d2 [%c_effect d2;square;d2;type;Brilliant;persistent;true] With the rook on a2 this move is not possible. 52. c3e2 