1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... e7e6  4. b2b3 This is usually Nakamura's weapon of choice in blitz and rapid events. 4... f8e7  5. c1b2  5... e8g8  6. g2g3 A funny move, as we are usually told that you should not combine e3 and g3 in the opening. But, to be honest, it does not make a huge difference in the evaluation of the position. Of course White can play more pragmatically with moves like 6.c3 or 6.Be2. Duda even tried the crazy 6.Rg1 followed by 7.g4 in a rapid event this year. Not something you should do, unless you are 2700+ and want to have fun in a dubious position. 6... b7b6  7. f1g2  7... c8b7  8. e1g1  8... c7c5  9. d1e2  9... d8c8  10. b1c3  10... f8d8  11. a1c1  11... b8c6  12. d2d3 Since the central exchange gives White no advantage, Nakamura decides to play this restrained move. But now Black can simplify the position. 12... d5d4  13. e3d4  13... c6d4  14. f3d4  14... b7g2  15. g1g2  15... c5d4  16. c3b1 An interesting winning attempt, preparing Nd2-f3. 16... c8b7  17. g2g1  17... h7h5 An interesting plan to prevent Nd2-f3. 18. b1d2  18... h5h4  19. g3h4 I don't know what to say about this move. Probably it would not even cross the minds of most chess players. But, of course, Nakamura is special, and that's why he wins so many times in these positions, although his play backfires in this game. 19... a8c8  20. e2f3 White's position gets very difficult to play after this move since he must find some strange computer moves to stay in the game. 20... b7a6 Of course Firouzja is not interested in a queen exchange now. 21. g1h1 This seems like a clever move, since taking on a2 is not so good for Black, but it's a mistake. 21... c8c5 