Now this seems like the wrong knight...
1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. h2h4 In a must-win situation Vachier-Lagrave should  be creative. 3... f8g7  4. b1c3  4... d7d5  5. h4h5  5... f6h5  6. c4d5  6... e7e6  7. g2g4 An original and  strong idea. 7... h5f6  8. d5e6  8... c8e6  9. e2e4  9... e6g4  10. f2f3  10... g4e6  11. c1g5 Forcing a kingside weakness thanks to the e4-e5  threat. As a result of Benko-style play on the kingside, Vachier-Lagrave  got a super-strong center for the pawn and a space advantage. Black's main problem now will be where to hide his king. 11... h7h6  12. g5e3  12... c7c6  13. g1e2  13... e6c4 Nepomniachtchi is happy to trade some light pieces. He should  not delay this move as otherwise Ne2-f4 would be highly unpleasant. 14. d1c2  14... d8a5  15. e2f4 Not the only way to develop the initiative. 15... c4f1  16. e1f1  16... b8a6 Careful play by Nepomniachtchi. 17. a2a3 White sensibly limits the knight and prepares a possible queenside assault, as soon as his opponent dares to castle long. 17... a6c7  18. f1f2 Finally, the king decides to remain in the center. But it is pretty  save there. Now White is definitely thinking about the opening of the  center. 18... g6g5 And that forces Black to weaken himself. 19. b2b4  19... a5a6  20. f4d3 This looks natural, but it is probably not the best. 20... a6c4  21. a1c1  21... f6d7  22. d3b2  22... c4e6  23. c3e2  23... c7b5  24. a3a4  24... b5d6 