[Event "North American Open 2022"] [Date "2022.12.27"] [Round "4"] [White "Liang, Jason"] [Black "Wang, Jason"] [Result "1-0"] [Annotator "Jason Wang"] [Variant "Standard"] [ECO "D00"] [Opening "Queen's Pawn Game: Accelerated London System"] [StudyName "North American Open (Wang annotations)"] [ChapterName "Liang, Jason - Wang, Jason"] [ChapterURL "https://lichess.org/study/vFd6hQmq/EJCyNQkh"] [Orientation "white"] { [%evp 0,14,19,31,43,13,29,28,67,19,60,-20,39,28,35,22,23] } 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nf3 Nc6 5. Nbd2 e6 6. c3 Be7 7. Ne5 Nxe5 8. dxe5! Nd7 9. Bd3 Qc7 10. Nf3 b6 11. h4 Bb7 12. Qe2 a6 13. O-O g6!? { I played this move with the idea of ...h7-h6 followed by ...g6-g5. } (13... h6 { Starting with this move would not work because } 14. h5 { brings Black's kingside play to a halt. Meanwhile, White will soon break in the center with e3-e4. }) 14. h5? { Liang tries to break open my pawns and stop my preparation of ...g6-g5, but he cannot win this pawn back easily and this pawn sacrifice opens up the g-file for me. } (14. e4 { The immediate central break was not bad, even after } 14... c4 15. Bc2 Nc5 (15... O-O $14) 16. exd5 Bxd5 17. Bh6 O-O-O 18. Rfd1 $14 { with a slightly better position for White. The kingside is locked up and White will slowly improve his position. }) 14... gxh5 15. Rad1 h4?! { This was played based on a miscalculation on the 19th move. } (15... Rg8! { I was scared that he would take my h7-pawn, but there is no situation in which this pawn is important in the near future. My g8-rook, on the other hand, is very important, as it eyes the g2-pawn. } 16. Bxh7 (16. e4 { He can try this move like he played in the game, but with my rook on g8, it is not as effective. } 16... c4 17. Bc2 dxe4 18. Bxe4 Nc5 19. Bxh7 (19. Bxb7 { Black shows the value of the g8-rook after } 19... Qxb7 20. Qxc4 Qxf3!) 19... Rg7 $15 { From now on, White's g2 pawn will be a huge problem for White after, for example, ...Qc8-c6. }) 16... Rg7 17. Bd3 { But now, I can play } 17... b5 { with the idea of ...0-0-0, and all of my pieces are coming in harmoniously. }) 16. e4 c4 17. Bc2 Nc5?! { I am completely oblivious to the exchange sacrifice that Liang has prepared. } (17... dxe4 18. Nd2 (18. Bxe4 Rg8 19. Rd4 b5 20. Rfd1 O-O-O $15) 18... b5 19. Nxe4 Rg8 $13 { This familiar move, resulting in chances for both sides, was more prudent. }) 18. exd5 Bxd5 19. Rxd5! { This move was a cold shower, killing my momentum this game. Even though Black will be up an exchange, White will have two dominating bishops and a fantastic blockade on the d4-square. Meanwhile, my king will find it difficult to castle and my pawn structure will be heinous. Yet, the position is still complicated. } 19... exd5 20. Bf5 Ne6 21. Bh2 Qc6? { This is a really awful move. It just begs for White's next move to be played with tempo. } (21... Bc5 $13) 22. Nd4! Nxd4 23. cxd4 b5?? { This was when I really started panicking. I was getting low on time, and I just crumbled with amazing speed. } (23... Rg8! { This move is prophylaxis against White's idea of Qe2-h5. } 24. e6 (24. Qh5 Rg5 25. Qxh7 Rxf5! { I am more than willing to sacrifice an exchange if it means that I solidify my position. } 26. Qxf5 Qe6 $15 { I have solidified my position and will now push my queenside pawns. }) 24... Rg5 25. exf7+ Kxf7 $13) 24. Qh5 { A simple but effective move. } 24... b4?? { Now, I am lost. I know e5-e6 is coming. } (24... Kd8 25. Qxf7 b4 $16 { Here, at least White is not getting a pawn to f7. }) 25. e6 Rf8 26. Re1 Kd8 27. exf7 c3 28. Re6 Qb7 29. Bd6 c2 30. Bxc2 Bxd6 31. Rxd6+ Kc8 32. Bf5+ Kb8 33. Be6 Ra7 34. Qe5 Qc7 35. Bxd5 Rb7 36. Rd7 $18 { 1-0 White wins. } 1-0