Preparing g5-g4.
1. e2e4  1... e7e6  2. d2d4  2... d7d5  3. e4e5  3... c7c5  4. c2c3  4... b8c6  5. g1f3  5... c8d7  6. f1e2  6... f7f6 This is one of the sharpest variations of the French advance, leading to positions with many tactical complications. 7. e1g1  7... f6e5  8. f3e5  8... c6e5  9. d4e5  9... d8c7  10. c1f4 The fourth most popular move. Nepomniachtchi, as do all elite players, has his own views on opening theory. 10... g8e7  11. a2a4 A logical move, preparing the development of the knight on a3, but it's not clear how White will react when Black plays a7-a6. It seems to me that both players confused the move order in the opening, which is not surprising; after all, this is a blitz game. 11... e8c8 This move helps White's attack, since the king goes directly into the fire. 12. b1a3  12... c8b8 This is a new move. 13. a3b5  13... d7b5  14. a4b5  14... e7c8 Black protects himself from an immediate attack thanks to the knight, the king's best friend. But White has the bishop pair and long-term pressure. 15. f4g3  15... c5c4 Preventing White's advance and giving the c5-square to the bishop. 16. e2g4  16... d8e8  17. b2b3  17... c4b3  18. d1b3  18... f8c5 The position, which was previously advantageous for White, has become balanced. It will lean even more toward Black in the next moves. 19. g1h1  19... h7h5  20. g4h3  20... g7g5  21. f2f3 The bishops are in an embarrassing situation, and material losses are inevitable.