1. c2c4  1... e7e5  2. b1c3  2... g8f6  3. g1f3  3... b8c6  4. e2e3  4... f8b4  5. d1c2  5... e8g8  6. c3d5  6... f8e8  7. c2f5  Quite a sharp opening choice by Duda, and excellent for blitz and rapid  chess. 7... d7d6  8. d5f6  8... g7f6  9. f5h5 White managed to destroy the  opponent's kingside but at the expense of a big delay with his  development. Therefore, Carlsen classically strikes in the center. 9... d6d5  10. a2a3  10... b4f8  11. f1d3  11... e5e4  12. c4d5  12... e4d3  13. d5c6  13... b7c6  14. b2b4  14... a7a5 Attacking the weakened  queenside before the opponent brings out the reserves. 15. c1b2  15... e8e4  16. f3d4  16... d8d5  17. h5d5 Carlsen must have underestimated this capture. White's  initiative develops rapidly due to the many weak pawns of the opponent. 17... c6d5  18. f2f3  18... e4e8  19. d4b5 Threat, threat, threat is best when developing the initiative. 19... e8e7  20. b2f6  20... e7d7  21. e1f2 Duda not only has a pawn, he managed to connect his  rooks and brought his bishop into striking distance to the black king.  This means White's attack remains strong in the endgame as well. 21... c8a6  22. b5d4  22... a6c4  23. h1b1 Only here did Duda slow down a bit but in vain! 23... a8a6  24. f6e5  24... f7f6  25. b4b5 An important intermediate move. 25... a6b6  26. e5f4  26... a5a4 Carlsen claims the b5-pawn in return. 27. g2g4  Whereas Duda once more builds his kingside initiative. 27... f8c5  28. h2h4  28... g8f7 Black is in no rush to capture on b5. 29. f2g3  29... c5d4  30. e3d4  30... c4b5  31. b1b4  31... d7e7 A slip! 32. a1b1  32... b5c4  33. b4b6 