1. e2e4  1... c7c5  2. g1f3  2... d7d6 Duda is not afraid to enter the sharp Sicilian lines. 3. f1b5 Whereas Carlsen prefers a more positional approach. 3... c8d7  4. b5d7  4... d8d7  5. e1g1  5... g8f6  6. d1e2  6... b8c6  7. c2c3  7... e7e6  8. d2d4  8... c5d4  9. c3d4  9... d6d5  10. e4e5  10... f6e4  11. b1d2  11... e4d2  12. c1d2 The pawn structure is the same as in the game  Carlsen-Xiong, except White does not have his pieces as nicely prepared  for a kingside attack. Besides, Duda comes with a strong move: 12... f8b4 The more pieces are traded, the easier Black's play will be. 13. d2f4 A novelty. Carlsen certainly wants to keep all his pieces  alive as he plans to attack on the kingside. 13... e8g8  14. e2d3 White wants to soften the opponent's kingside with  Nf3-g5! 14... b4e7 Duda does not allow any active knight jumps. 15. a2a3  15... a8c8 Precisely this rook. 16. g2g3  16... c6a5 Black's play is very natural and obvious. White needs to be  careful. 17. b2b3  17... d7c6  18. f4d2 A necessary move. 18... c6b6  19. f1b1  19... a7a6  20. g1g2 The impression is that Carlsen was  somewhat slow to build his attack in this game. 20... a5c6  21. b1e1  21... b6b5  22. d3b1  22... c8c7  23. h2h4  23... f8c8 Now Duda starts to threaten first. 24. a1a2  24... a6a5  25. e1h1  25... a5a4 Duda opens some infiltration squares for his  pieces. 26. b3b4  26... h7h6  27. d2e3  27... c6a7 Now the major pieces threaten to infiltrate Carlsen's  camp, and he needs to revert to defense. 28. e3d2  28... b5e2  29. h1e1  29... e2c4  30. e1e3  30... a7b5  31. e3d3  31... c7c6  32. a2b2  32... e7d8  33. g3g4 Finally, the world champion starts his kingside attack. 33... d8b6  34. d2e3  34... b5c3  35. b1f1  35... c4b5 Duda is accurate. 36. b2c2  36... c3e4  37. c2c6 Carlsen spent a valuable half-minute on his clock. 37... c8c6  38. d3d1 This is definitely a mistake. The endgame should be  avoided like the plague! 38... c6c4 And Duda believes his mighty opponent. 39. f3d2  39... e4d2  40. d1d2  40... b5c6  41. f1e2  41... c4c3  42. d2a2 Going into a passive  defense. 42... b6d8 Duda stops all these possibilities now. 43. g4g5  43... h6g5  44. h4g5  44... c6c4 Endgame is the game here! 45. e2c4  45... d5c4  46. d4d5 Carlsen knew that if something is not changed urgently he would lose the battle slowly and risks 46... e6d5  47. a2d2  47... c3d3 This looks  like the most practical choice, but Duda allows some chances, just a move  away from the overall win.