[Event "USSA 2023"] [Site "DurbanDUT"] [Date "?"] [Round "8"] [White "Cele Siyabonga"] [Black "Samuel Mathye"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "E11"] [Opening "Bogo-Indian Defense: Wade-Smyslov Variation"] [Termination "Unknown"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 { E11 Bogo-Indian Defense: Wade-Smyslov Variation } 5. a3 Bxd2+ 6. Nbxd2 d6 7. g3 b6 8. Bg2 Bb7 9. O-O O-O 10. Re1 Nbd7 11. e4 e5 12. d5? { (0.70 → -0.63) Mistake. Qc2 was best. } (12. Qc2 Re8) 12... Nc5?! { (-0.63 → 0.46) Inaccuracy. a4 was best. } (12... a4 13. Re3 Ng4 14. Rc3 Nc5 15. Ne1 Bc8 16. h3 Nh6 17. g4 f6 18. Rg3 Nf7 19. Nd3) 13. Nh4? { (0.46 → -1.14) Mistake. b3 was best. } (13. b3 Nd3) 13... Qd7?? { (-1.14 → 0.59) Blunder. a4 was best. } (13... a4) 14. h3?? { (0.59 → -1.51) Blunder. b3 was best. } (14. b3 Qe7 15. Nf5 Qd8 16. Ne3 g6 17. Qc2 Ncd7 18. b4 Bc8 19. Qc3 h5 20. h4 Ng4) 14... Nd3 15. Re3 Nxb2 16. Qc2 Na4 17. Nb3 Nc5?! { (-1.80 → -0.90) Inaccuracy. c6 was best. } (17... c6 18. f4 b5 19. dxc6 Bxc6 20. c5 Nxc5 21. Nxc5 dxc5 22. Qxc5 exf4 23. gxf4 Rfe8 24. Nf5) 18. Nxc5 bxc5 19. Rb3 Qa4 20. Qa2?! { (-0.88 → -1.79) Inaccuracy. Nf5 was best. } (20. Nf5 g6 21. Ne3 Bc8 22. Rab1 Nh5 23. Qd2 Qd7 24. Ng4 Ba6 25. Bf1 a4 26. R3b2 Kh8) 20... Ba6 21. Rc3 Rab8 22. Nf5 Rfe8 23. f3 g6 24. Ne3 Rb6 25. Qc2?! { (-2.19 → -3.24) Inaccuracy. Rb1 was best. } (25. Rb1 Reb8 26. Rxb6 Rxb6 27. Qd2 Nh5 28. Kf2 Bc8 29. Bf1 Qd7 30. Nd1 Kg7 31. Rc2 Rb3) 25... Qxc2 26. Rxc2 Reb8 27. Raa2 Rb3 28. Kf2 Nd7 29. Bf1 Nb6 30. h4 Na4 31. Nd1 Kg7 32. g4 Rf8 33. g5 f5 34. gxf6+ Rxf6 35. Ne3?! { (-5.12 → -7.07) Inaccuracy. Be2 was best. } (35. Be2 Rf4) 35... Rf4?! { (-7.07 → -5.42) Inaccuracy. Nc3 was best. } (35... Nc3) 36. Bh3?! { (-5.42 → -7.40) Inaccuracy. Ra1 was best. } (36. Ra1) 36... Rxh4?! { (-7.40 → -5.32) Inaccuracy. Nc3 was best. } (36... Nc3) 37. Bd7?! { (-5.32 → -7.78) Inaccuracy. Bg2 was best. } (37. Bg2 h5) 37... Nb6 38. Ng2 Rh2 39. Kg1 Rxg2+ 40. Kxg2 Nxd7 41. Rcb2 Bxc4 42. Rxb3 Bxb3 43. Rb2 a4 44. Kg3 Nb6 45. Rb1 Nc8 46. f4 exf4+ 47. Kxf4 Na7 48. Kg5 Nb5 49. e5 h6+ 50. Kf4 dxe5+ 51. Kxe5 Nxa3 52. Rf1 Nb5 53. Ke6 h5 54. Rf7+ Kh6 55. Kf6 Bxd5 56. Rf8 Kh7 57. Rd8 Bc6 58. Rf8 a3 59. Rf7+ Kg8 60. Rg7+ Kf8 61. Rh7 Ke8 62. Ke6 Nd4+ 63. Ke5 a2 64. Rh8+ Kd7 65. Kf6 a1=Q 66. Kxg6 Qg1+ 67. Kf7 Qf2+ 68. Kg6 { Black wins. } 0-1