[Event "2023 U.S. Junior Chess Championship"] [Site "Saint Louis, United States"] [Date "2023.07.22"] [Round "7.3"] [White "Guo, Arthur"] [Black "Hong, Andrew"] [Result "1-0"] [WhiteElo "2483"] [BlackElo "2520"] [Annotator "FM Alex King"] [Variant "Standard"] [ECO "B51"] [Opening "Sicilian Defense: Moscow Variation"] [Source "https://lichess.org/study/ZBuAQUT7/MdKAxQqY"] [Orientation "white"] { Annotations by FM Alex King } 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Be2 Ngf6 7. O-O g6 8. Nc3 Bg7 9. Rd1 O-O 10. e5 { Transforming the pawn structure into the "3-3 versus 4-2" structure, which also frequently arises from the French and Caro-Kann. } 10... dxe5 11. Nxe5 Qc7 12. Nc4 Re8 $16 (12... b5 $13 { would prevent White's reply in the game. }) 13. a4! b6 14. Qf4 Qxf4 15. Bxf4 { White has a pleasant bind, but it's not clear if it's a decisive one. } 15... Bb7 16. g4 Bc6 17. g5 Nh5 18. Be3 Ne5 $18 { Jettisoning the b6-pawn, but failing to get anything for it. } (18... Bxc3 19. bxc3 Rab8 $16 { was the last chance, although this may also be losing, and in any case would be very unpleasant for Black. }) 19. Nxb6 Rab8 20. Ncd5 e6 21. Nc7 Rf8 22. a5 Nf3+ 23. Bxf3 Bxf3 24. Nxa6 Rb7 25. Nc5 Rc7 26. Rd7 Rc6 27. Ra2 Nf4 28. Bxf4 Rxc5 29. c4 Be5 30. b4 Rxc4 31. Nxc4 Bxf4 32. Nb6 Bc6 33. a6 Rb8 34. b5 Bf3 35. Rd3 Be4 36. Rd4 Rxb6 37. Rxe4 Bb8 38. Rb4 Ba7 39. Rd2 Rb8 40. b6 Bxb6 41. Rdb2 { It is of course time to resign here, but for some reason Hong continues playing hopelessly. } 41... Rc8 42. Rxb6 Rc1+ 43. Kg2 Ra1 44. Rb8+ Kg7 45. Ra8 Ra5 46. h4 h6 47. gxh6+ Kxh6 48. a7 Kg7 49. Rb7 g5 50. Rab8 gxh4 51. a8=Q h3+ 52. Kxh3 Rh5+ 53. Kg4 Rf5 54. Rg8+ { 1-0 White wins. } 1-0