1. e2e4  1... e7e5  2. f1c4  2... g8f6  3. d2d3  3... b8c6  4. b1c3 Nepomniachtchi has been extremely  successful in reviving this old Vienna line. 4... f8b4 This should not  have come as a surprise for Nepomniachtchi as Giri used the line twice  recently to hold on against strong opposition. 5. g1f3  5... d7d6  6. e1g1  6... b4c3  7. b2c3  7... c6a5  8. c4b3  8... h7h6  9. h2h3  9... d8e7  10. f3h2 With the clear intention of f2-f4! 10... a5b3 Black has an  aggressive idea in mind. 11. a2b3  11... g7g5 The point. Giri hopes he can block the opponent's kingside  play. It is not clear though where he intends to hide his king, especially with the half-opened a-file against his potential queenside castle. 12. f1e1 Nepomniachtchi makes immediate use of the weakness of the f5-spot and sends his knight there. 12... h8g8  13. h2f1  13... g5g4  14. h3h4 Naturally, the kingside should be locked. g2-g3 is on the  agenda. 14... g4g3 No hesitation. Giri needs the half-open file for his  rooks. 15. f2g3  15... g8g6  16. b3b4 Expanding on the queenside with the clear intention to fix the a7-pawn and to limit the remaining black pieces with his pawns. 16... f6h5 Apparently, Giri planned this in advance. But he is about to  be shocked. 17. d1h5 Very nice! 17... c8g4  18. h5g6  18... f7g6  19. c1h6 Nepomniachtchi has more than enough  material for the queen - a rook, knight and a couple of pawns. But it is  the indisputable control over the dark-squares and the only open file  which makes Black's position horrific. 19... e8d7  20. f1e3  20... g4e6  21. e1f1  21... e7h7  22. h6g5  22... h7g8  23. f1f6  23... a7a6  24. a1f1  24... a8e8  25. c3c4 The knight is ready to occupy the center. 25... b7b6  26. e3d5  26... d7c6  27. f6f2  27... g8g7  28. g1h2 No rush at all. When one has decisive edge on a  certain color, it can never disappear. 28... c6b7  29. d5c3  29... e8a8  30. f2f6  30... g7g8  31. c4c5 One way or another the black king will be  exposed. 31... g8e8  32. c3d5  32... d6c5  33. b4c5  33... b6c5  34. f1b1  34... b7c8  35. g5h6 