[Event "2023 North American Junior U20"] [Site "Dulles"] [Date "2023.12.23"] [White "Daniel Xu"] [Black "Carissa Yip"] [Result "0-1"] [WhiteElo "2255"] [BlackElo "2399"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "C79"] [Opening "Ruy Lopez: Morphy Defense, Steinitz Deferred"] [Source "https://lichess.org/study/PMUD6XkL/h4JoiBYL"] [Orientation "white"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 Bd7 7. c3 g6 8. d4 Bg7 9. Nbd2 Nh5 10. Nf1 b5 11. Bc2 Bg4 12. h3 Bd7 13. Be3 O-O 14. Qd2 Re8 15. Rad1 Qc8 16. Ng3 Nxg3 17. fxg3 Na5 18. b3 Nc6 19. Rf1 a5 20. Qf2 Rf8 21. g4 b4 22. d5 Ne7 23. c4 Qe8 24. g5 Qb8 25. Qh4 c6 26. Nh2 cxd5 27. cxd5 Rc8 28. Bd3 Rc3 29. Ng4 Bxg4 30. hxg4? { White misses Yip's threat. } (30. Qxg4 { keeps a nice position. } 30... Qb7 (30... Nxd5?? { no longer works } 31. exd5 e4 32. Qxe4 { is the point. }) 31. Qe2 $16) 30... Nxd5! { With less space, a passive knight, and structural weaknesses as well as a more exposed king, all signs point to Black needing a dynamic solution. She finds one. } 31. exd5 e4 32. Qf2 (32. Bxe4? Rxe3 { is terribly dangerous for White. Without a dark-squared bishop, White's king is far more exposed. For instance: } 33. Bd3 Qa7! 34. Kh1 Bc3! { (prophylaxis to prevent trades of rooks. With heavy pieces on, the opposite-colored bishops position is sharp. With trades, White is in the clear. ) } 35. Qf2 Qe7 36. Qf4 Re5 $17) 32... exd3 33. Qxf7+ Kh8 34. Qf4 Qg8 35. Bd4 Qxd5 36. Bxg7+ Kxg7 37. Rde1 Rc7 38. Re4 Rf7 39. Qxf7+?? (39. Rd4 { is preferable for Black, but since the endgame is losing, White had to keep things complicated. }) 39... Qxf7 40. Rxf7+ Kxf7 41. Rd4 Ke6 { White equalizes from a materialistic standpoint, but when you take into account that White is ridding Black of her doubled pawn while keeping his triplets on the kingside, it's clear that this was not preferable to the six-heavy-piece position before move 39. } 42. Rxd3 d5 { Breaking the principle of "king in front of pawn" but not to any dramatic effect here. } (42... Rc8 43. Rh3 Rc2 44. Rxh7 Kd5 $19 { might be the clearest win. }) 43. Kf2 Rc8 44. Re3+ Kd6 45. Re2 { Counterattacking with } (45. Rh3 { is too slow: } 45... Rc2+ 46. Kf3 Rxa2 47. Rxh7 Kc5 48. Rd7 a4 $19) 45... Rf8+ 46. Ke1 Rf4 47. Kd2 Rxg4 { Prosaic and efficient. Black wins routinely from here. } 48. Kd3 Rxg5 49. Rf2 Rg3+ 50. Kd4 Rg4+ 51. Kd3 h5 52. Rf6+ Ke5 53. Ra6 Rg3+ 54. Ke2 Rxg2+ 55. Kf3 Rxa2 56. Rxg6 Ra3 57. Rg5+ Kd4 58. Rxh5 Rxb3+ 59. Ke2 Rb2+ 60. Kd1 a4 61. Rh4+ Kc5 62. Kc1 Rg2 63. Kb1 d4 64. Rh8 b3 65. Rc8+ Kb4 66. Rb8+ Ka3 67. Kc1 b2+ { 0-1 Black wins. } 0-1