Forcing a kingside weakening.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. e1g1  4... f6e4  5. d2d4  5... e4d6  6. b5a4 An  interesting side line. Nepomniachtchi does not shy away from sacrificing a pawn against anyone. 6... e5d4  7. c2c3  7... f8e7  8. c3d4  8... b7b5  9. a4b3  9... e8g8  10. b1c3  10... c8b7  11. f1e1  11... e7f6  12. c1f4  12... c6a5  13. b3c2  13... b5b4  14. c3a4 So far Black has played well; however, his next obvious move will be the main reason for his future problems. 14... g7g6  15. f3e5 White's knights will dominate from here on. 15... d6b5  16. a4c5  16... d7d6 Now a beautiful tempo fight starts. 17. c5b7  17... a5b7  18. e5c6  18... d8d7  19. c6b4 White regains the pawn for a moment. 19... b5d4  20. b4d5 And then the knight lands on another brilliant  position. 20... f6g7 However, now after 21. e1e7  21... d7d8  22. f4g5 Nepomniachtchi builds a nasty ambush, which  Radjabov cannot block at all. 22... g8h8 Now look what Nepomniachtchi  found: 23. c2g6  23... f7g6 Now what? The rook is not taking on g7 with check. 24. h2h4 This! A silent move, which creates violent threats. This  strength is what the world champion will be facing at the long-awaited  match. 24... d8e7 The only idea. Everything else would lose without a  chance. 25. d5e7  25... a8e8  26. g5e3 A pity. 26... c7c5  27. e7d5  27... e8e5 At last showing some activity. Radjabov has  significantly improved his chances. 28. d5c3  28... b7d8  29. d1d2 While Nepomniachtchi is moving in the wrong  direction. 29... d8e6  30. e3h6 After this trade, Black's position becomes  comfortable. 30... g7h6  31. d2h6 