1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. e2e3 The Colle system quickly turns into a reversed  Queen's Gambit Accepted. 3... c7c5  4. d4c5  4... e7e6  5. b2b4  5... a7a5  6. c2c3  6... a5b4  7. c3b4  7... b7b6  8. f1b5  8... c8d7  9. b5d7  9... b8d7  10. a2a4  10... b6c5  11. b4b5 The arising position is reminiscent of the Triangle  system with the colors reversed. The plans of the sides are obvious: Black is going to use his strong center to build up a kingside attack, whereas  White will push his passers as far as he can. 11... f8d6  12. c1b2  12... e8g8  13. e1g1  13... d8c7  14. b1d2  14... c5c4  15. b2c3  15... e6e5 In line with the plan. So needs to  remove the white kingside knight as quick as possible. 16. a4a5 Firouzja prefers to push the pawns one rank closer to their  promotion rather than defend his h2-pawn. 16... e5e4  17. b5b6 The point. 17... c7b8  18. f3d4  18... d6h2  19. g1h1  19... h2e5  20. d4c6 Picks up the important  defender of the dark squares. 20... b8d6  21. c6e5  21... d7e5  22. g2g3 Firouzja believes in his kingside  stability. But this might have been a tad too risky. 22... f6g4 Now So's knights are becoming frightening. 23. h1g2  23... d6e6  24. a1b1 White is following a very neat plan that intends to surround the key  d5-pawn. 24... f8b8  25. d1e2  25... e5d3  26. b1b5 An essential part of Firouzja's plan,  but the rook is in fact vulnerable there. 26... a8a6 A blunder, which  White did not capitalize on. It is not evident how the rook blockade is  helping Black. So did not feel that this was the do-or-die moment. 27. d2b1 Another key point behind White's play. The knight is heading  to c3. Once it gets there, Black's position will collapse. 27... h7h5 Now the knight is defended, but the re-opening of the h-file  takes too long, and So does not get enough time to attack. 28. c3d4  28... h5h4  29. f1h1  29... h4g3  30. f2g3  30... g4h6  31. b1c3 The triumph of White's strategy! The pawn on d5 drops, and  Black's position collapses. 31... e6d6  32. b5d5  32... d6a3  33. h1h6 And a  neat tactical finish.