1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. f1d3  6... e7e6  7. f2f4  7... d8c7  8. d1e2  8... b7b5  9. a2a3  9... b8d7  10. e1g1  10... c8b7  11. d4f3  11... f8e7  12. c1d2  12... e8g8  13. a1e1  13... a8c8  14. g1h1  14... d7c5  15. b2b4  15... c5d3  16. c2d3  16... c7d7 Preparing counterplay along the c-file.  Korobov's position is quite pleasant. 17. f3d4  17... c8c7  18. c3a2 Karjakin  maneuvers his knight towards the a5 outpost. 18... f8c8  19. a2c1  19... g7g6  20. c1b3  20... e6e5 Korobov feels that the knights are  not optimally placed and this is a good moment to break open the position  for the bishops. 21. f4e5  21... d6e5  22. d4f3  22... d7e6  23. b3c5 An additional chance that was  presented thanks to the opening of the f-file. Black has to be careful  now! 23... e7c5  24. b4c5  24... c7c5 And he is not! 25. f3g5  25... e6e7 Accepting the loss of the exchange. 26. d2b4  26... h7h6  27. g5f3  27... a6a5  28. b4c5  28... c8c5  29. e2d2 Another double attack.  Karjakin is obviously winning. 29... g8g7  30. d2a5  30... f6h5  31. a5b4  31... e7c7  32. b4d2  32... c7d6  33. g2g3 Why open the diagonal against his own king without  any necessity? In blitz!? 33... f7f5 Now it gets very, very messy. 34. e4f5  34... g6f5  35. h1g1  35... h5f6  36. f3h4  36... d6c6 This is why the long diagonal should not have been opened.  Karjakin has to think about defense as well, not only about converting the material advantage. 37. d2g2  37... c6b6 There are so many problems on the diagonals now! 38. h4f5  38... g7h7  39. g2h3 But Karjakin does not tremble and creates mating  threats on his own! 39... c5c2  40. d3d4  40... f6g4 Exclam for the courage! 41. f5e3  41... b6d4  42. f1f7 The only move. 42... h7g6  43. f7b7  43... g4e3 Black is almost mating, but it is White who  starts the checks first.