[Event "2023 National High School Championships"] [Site "Washington D.C."] [Date "2023.04.01"] [White "Jonah Treitler"] [Black "Chance Nguyen"] [Result "0-1"] [WhiteElo "1898"] [BlackElo "1701"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "D45"] [Opening "Semi-Slav Defense: Stoltz Variation"] [StudyName "NHS Games"] [ChapterName "Jonah Treitler - Chance Nguyen"] [ChapterURL "https://lichess.org/study/gWVmQS5K/N9dAgpwu"] [Orientation "white"] { Annotations by JJ Lang } 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd2 O-O 8. a3 Re8 9. h3 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. cxd5 cxd5! { Black correctly decides that the piece activity justfiies the pawn structure. Additionally, White is not developed enough to take the time to reorganize his pieces in order to blockade the d5-pawn. As such, ...d5-d4 will always be a lurking threat, as turned out to be fatal in the game. } 13. Bd3 Bd7 14. O-O Rc8 15. Rac1 Ne4 16. Be1 h6 17. Qb1 Bc6 18. b4 Nxc3 19. Bxc3 d4 20. exd4? Qg5! { A textbook example of the speed which which Black can attack after the ... d5-d4 sacrifice, especially with such a gruesome bishop pair. } 21. f3 Bf4 22. Rce1 Qg3 23. Rxe8+ Rxe8 24. Be4 f5 25. Qa2+ Kh8 26. Qf7 fxe4 27. fxe4 Qh2+ 28. Kf2 Bg3+ 29. Kf3 Rxe4 30. d5 Rf4+ { 0-1 Black wins. } 0-1