1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... f8c5  5. c2c3  5... e8g8  6. e1g1  6... d7d6  7. f1e1  7... a7a5  8. c1g5 In a must-win situation, Carlsen chooses a risky line. 8... h7h6  9. g5h4  9... g7g5 This is why the early bishop sortie is risky: it may  end up being locked out of the game for a long time. 10. h4g3  10... c5b6  11. b1a3  11... f6h7  12. a3c2 The knight is above all supporting the d3-d4 push, although  it might as well be easily transferred to the f5 (d5)-square. 12... h6h5  13. h2h3  13... h5h4  14. g3h2  14... g5g4 Not just attacking the kingside, but  above all fighting for the center. 15. h3g4  15... c8g4  16. d3d4 Very consistent  and strong. 16... e5d4  17. c2d4  17... c6d4  18. c3d4  18... h7g5  19. d1d3  19... g5f3  20. g2f3  20... g4h5  21. e4e5 The pressure against the d4-point does not  succeed. Carlsen has managed to consolidate his center and now starts a  decisive attack. First, he opens more diagonals for his pieces, and  Qd3-g6+ is a threat. 21... d6d5  22. c4b3  22... a5a4  23. b3d1 Slowing down, in the heat of the attack. In the after-match  interview, Carlsen explained that he did not did not trust his intuition  enough. 23... d8g5 Missing a better defense, but what is more important, So  plays fast and confident, and this will soon completely take Carlsen out  of his comfort zone. 24. g1h1  24... h5g6  25. d3e2 The attack continues at full speed. 25... b6d4  26. e1g1  26... g5h5 Despite the missed chance, Carlsen has one more shot to get  back in the match. The problem is that the good and logical possibilities  are abundant, unlike the time on the clock. 27. e2d2 Alas, this is not  the right direction. 27... c7c5  28. f3f4  28... h5h6 A strong defensive idea that So played without any  hesitation. 29. g1g5  29... f7f6 The point. It is illogical to push the last pawn in front  of the king, but the American GM correctly understood that he had enough  time to bring his pieces to the rescue. 30. e5f6 