[Event "U.S. Women's Championship"] [Site "St Louis"] [Date "2023.10.17"] [Round "11.1"] [White "Yip, Carissa"] [Black "Yan, Ruiyang"] [Result "0-1"] [WhiteElo "2372"] [WhiteTeam "United States"] [BlackElo "2206"] [BlackTeam "United States"] [Annotator "IM Carissa Yip"] [Variant "Standard"] [ECO "B33"] [Opening "Sicilian Defense: Four Knights Variation, Cobra Variation"] [Source "https://lichess.org/study/Q3zMf6GZ/77qA2zCj"] [Orientation "white"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bc5 7. Nd6+ Ke7 8. Bf4 e5 9. Nf5+ Kf8 10. Bg5 d6 11. Ne3 Be6 12. Qd2 h6 13. Bxf6 Qxf6 14. Ncd5 Qd8 15. Bc4 Rc8 16. Bb3 Kg8 17. c3 Kh7 18. Bc2 Ne7 19. O-O-O b5 20. Kb1 a5 21. f4 b4 22. Qe1 Qe8 23. Nxe7 Qxe7 24. f5 Bxe3 25. Qxe3 Bc4 26. b3 bxc3 27. bxc4 Qb7+ 28. Bb3 a4 29. Qxc3 axb3 30. axb3 Rb8 31. Kb2 Qxe4 32. Qc2 Qxc2+ 33. Kxc2 Rb6 34. Rd3 Ra8 35. Kb2 g6 36. Rhd1 Raa6 37. fxg6+ Kxg6 38. Rg3+ Kh7 39. Rf1 Rb7 40. Rf6 Rc6 41. Kc3 Rcb6 42. Kc2 Ra6 43. Rh3 Kg7 44. Rfxh6 Ra2+ 45. Kc3 Ra3 46. Kc2 Ra2+ 47. Kb1 Rxg2 48. Rxd6 Rf2 49. c5 { Allowing Black to get the doubled rooks on the second in order to push my pawns. } 49... Ra7 50. b4 Raa2 51. Rb3 e4 52. Rd1 e3 53. Re1 Rad2 { I'd seen this position in my calculations; Black is just in time with her e-pawn to stop my connected passers. } 54. c6 (54. Rbxe3 { would allow Black a perpetual. }) 54... e2 55. Kc1 Rd6 { Here is the critical moment: } 56. b5?? Rf1 57. Rg3+ Kf6 (57... Kf8 58. Rg1 { This was what I had planned, and I was expecting 58. ...Rdf6. But once I played 58. b5, I suddenly noticed Black had: } 58... Rd1+ { And the rook is untouchable! } (58... Rdf6 59. c7 Rxg1 60. c8=Q+)) 58. Rf3+ Rxf3 59. Rxe2 Rc3+ 60. Kb1 Rb3+ { Black picks up the pawns, and it's time to resign. } 0-1