1. g1f3  1... g8f6  2. c2c4  2... c7c5  3. b1c3  3... b8c6  4. d2d4  4... c5d4  5. f3d4  5... e7e6  6. g2g3  6... d8b6  7. d4b5  7... c6e5  8. c1f4  8... f6g4  9. e2e3  9... a7a6  10. h2h3  10... a6b5  11. h3g4  11... e5c4  12. a1c1 A surprise for  Black. [#] 12... d7d5 After thinking for 11 minutes, Nepomniachtchi fires a  novelty, but Giri is not impressed at all and keeps blitzing on! 13. b2b3  13... f8b4 After another lengthy deliberation by the Russian GM. 14. b3c4  14... a8a3  15. f4e5  15... f7f6  16. e5d4  16... b6a5  17. f1e2  17... b4c3  18. c1c3  18... a3c3  19. e1f1  19... b5b4 The mark comes predominately for the practical strength of  the move. But having a strong passer on c3 does not look bad either! Giri  knew this move too, but he believed it to be highly unlikely to be played  as both c4 captures look logical and are, in fact, good too. 20. g4g5 Finally, some thought by Giri. 20... e6e5 The point behind  Black's last move. Nepomniachtchi secures his king and himself from any  homemade bombs. 21. d4c3  21... b4c3  22. g5f6  22... g7f6  23. d1b1 Giri is still playing for more than  the position offers him and will be soon sorry. 23... a5c7  24. b1d3 Nepomniachtchi did not like this. 24... b7b5 A strong move! Black is playing for the win. 25. d3c3  25... b5c4  26. e3e4  26... d5e4  27. h1h4 "Maybe this is just unpleasant for  White" (Nepomniachtchi). 27... c8e6  28. h4e4  28... e8g8  29. e2c4 Finally, Giri took his pawn back but allowed a nasty pin. 29... g8g7 Mounting more pressure against the pinned pin is a threat, therefore: 30. c3b3  30... f8b8  31. c4e6 The Dutchman is looking for a fortress. 31... b8b3  32. e4g4  32... g7f8  33. e6b3  33... c7c1 Another good maneuver. The queen is placed superbly after  the in-between checks. 34. f1g2  34... c1c6  35. g2g1  35... h7h5 Black won a queen, but  since there are only few pawns left on the board, this might well be a  fortress. 36. g4g8 But this move probably just misses the correct idea.  In the short postmortem, Giri mentioned that the correct idea would be to  try and stay on the fourth rank with the rook and hold this way, but he  was not sure how exactly to do it. 36... f8e7  37. g8g7  37... e7d6  38. g7h7  38... c6f3  39. h7h8  39... e5e4 Creating the mortal  threat e4-e3! 40. h8d8  40... d6e7  41. b3d1  41... f3c3  42. d8d5  42... h5h4  43. g3h4  43... f6f5  44. d5f5  44... c3e1  45. g1g2  45... e1d1  46. f5g5  46... d1a1  47. g5g4  47... a1b1  48. g4g3  48... b1a2  49. g3h3  49... a2d5  50. g2f1  50... d5d1  51. f1g2  51... d1g4  52. h3g3  52... g4h5  53. g3a3  53... h5d5  54. g2g1  54... e7f6 Black is winning. Had the black pawn been on g4  or the white pawn on h3 instead of h4, this would have been a fortress,  but not this one. The Russian GM technically proves the win. 55. a3g3  55... d5d1 