Event: 2025 Oceania Zonal 3.6
Site: Melbourne, Australia
Date: 2025-01-28
White: Cheng, Chao Xin
WhiteTitle: WCM
WhiteElo: 1833
Black: Ryjanova, Julia
BlackTitle: WGM
BlackElo: 2245
Result: 0-1
ECO: B33
Opening: Sicilian Defense: Four Knights Variation, Cobra Variation
Variant: Standard
TimeControl: 1:30.00 + 30 seconds increment from move 1

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:37] } 2. Nf3 { [%eval 0.2] [%clk 1:31:19] } 2... e6 { [%eval 0.28] [%clk 1:30:41] } 3. Nc3 { [%eval 0.26] [%clk 1:31:19] } 3... Nc6 { [%eval 0.31] [%clk 1:27:21] } 4. d4 { [%eval 0.36] [%clk 1:31:09] } 4... cxd4 { [%eval 0.41] [%clk 1:27:41] } 5. Nxd4 { [%eval 0.24] [%clk 1:31:31] } 5... Nf6 { [%eval 0.35] [%clk 1:27:19] } 6. Ndb5 { [%eval 0.25] [%clk 1:28:43] } 6... Bc5 { [%eval 0.29] [%clk 1:26:32] } 7. Nd6+ { [%eval 0.3] [%clk 1:21:23] } 7... Ke7 { [%eval 0.25] [%clk 1:26:53] } 8. Nxc8+ { [%eval -0.06] [%clk 1:07:49] } 8... Rxc8 { [%eval -0.17] [%clk 1:26:55] } 9. Bd3 { [%eval -0.17] [%clk 1:04:49] } 9... a6 { [%eval -0.13] [%clk 1:23:38] } 10. O-O { [%eval -0.33] [%clk 1:04:07] } 10... Qc7 { [%eval -0.19] [%clk 1:23:01] } 11. Kh1 { [%eval -0.31] [%clk 1:00:37] } 11... h5 { [%eval -0.14] [%clk 1:20:12] } 12. Bg5 { [%eval -0.44] [%clk 0:52:39] } 12... Kf8 { [%eval -0.39] [%clk 1:18:51] } 13. Qd2 { [%eval -0.67] [%clk 0:44:24] } 13... Ng4 { [%eval -0.57] [%clk 1:12:35] } 14. Bf4 { [%eval -0.65] [%clk 0:43:43] } 14... Nce5 { [%eval -0.76] [%clk 1:12:14] } 15. f3 { [%eval -0.83] [%clk 0:37:48] } 15... Nf6?! { [%eval 0.09] } { Inaccuracy. g5 was best. } { [%clk 1:10:08] } 16. Rad1?! { [%eval -0.53] } { Inaccuracy. h3 was best. } { [%clk 0:34:16] } 16... h4 { [%eval -0.47] [%clk 1:06:26] } 17. Na4 { [%eval -1.01] [%clk 0:33:07] } 17... Be7?! { [%eval 0.03] } { Inaccuracy. Ba7 was best. } { [%clk 0:56:47] } 18. Qc3?! { [%eval -0.52] } { Inaccuracy. c4 was best. } { [%clk 0:31:08] } 18... Qxc3 { [%eval -0.38] [%clk 0:49:01] } 19. Nxc3 { [%eval -0.54] [%clk 0:31:31] } 19... Ng6 { [%eval -0.31] [%clk 0:46:49] } 20. Be3 { [%eval -0.54] [%clk 0:30:58] } 20... Bc5 { [%eval -0.45] [%clk 0:41:49] } 21. Bxc5+ { [%eval -0.52] [%clk 0:29:25] } 21... Rxc5 { [%eval -0.51] [%clk 0:42:13] } 22. Kg1 { [%eval -0.52] [%clk 0:23:41] } 22... Nf4 { [%eval -0.5] [%clk 0:40:04] } 23. Kf2 { [%eval -0.58] [%clk 0:23:46] } 23... Ke7 { [%eval -0.6] [%clk 0:38:32] } 24. Rfe1 { [%eval -0.65] [%clk 0:22:55] } 24... d6 { [%eval -0.53] [%clk 0:34:43] } 25. Rd2 { [%eval -0.56] [%clk 0:22:03] } 25... Nd7 { [%eval -0.23] [%clk 0:30:01] } 26. Ne2 { [%eval -0.5] [%clk 0:18:53] } 26... g5 { [%eval -0.49] [%clk 0:28:26] } 27. Nd4 { [%eval -0.51] [%clk 0:17:45] } 27... Ne5 { [%eval -0.55] [%clk 0:27:00] } 28. Bf1 { [%eval -0.53] [%clk 0:16:45] } 28... Rhc8 { [%eval -0.51] [%clk 0:25:53] } 29. g3 { [%eval -0.74] [%clk 0:15:51] } 29... Nfg6 { [%eval -0.47] [%clk 0:24:48] } 30. c3 { [%eval -0.46] [%clk 0:14:56] } 30... Rh8 { [%eval -0.35] [%clk 0:22:27] } 31. Red1 { [%eval -0.56] [%clk 0:14:02] } 31... b5 { [%eval -0.37] [%clk 0:16:30] } 32. Nb3 { [%eval -0.42] [%clk 0:12:06] } 32... Rc6 { [%eval -0.32] [%clk 0:16:50] } 33. Nd4 { [%eval -0.56] [%clk 0:12:06] } 33... Rb6 { [%eval -0.24] [%clk 0:15:43] } 34. Be2 { [%eval -0.45] [%clk 0:10:15] } 34... Nc4 { [%eval -0.09] [%clk 0:13:50] } 35. Bxc4 { [%eval -0.08] [%clk 0:09:06] } 35... bxc4 { [%eval -0.06] [%clk 0:14:13] } 36. b3?! { [%eval -0.72] } { Inaccuracy. b4 was best. } { [%clk 0:08:41] } 36... a5 { [%eval -0.64] [%clk 0:07:40] } 37. Ke3 { [%eval -0.75] [%clk 0:07:05] } 37... Rc8 { [%eval -0.47] [%clk 0:06:13] } 38. Rc1 { [%eval -0.78] [%clk 0:06:24] } 38... Ne5 { [%eval -0.36] [%clk 0:04:51] } 39. f4 { [%eval -0.31] [%clk 0:06:28] } 39... gxf4+ { [%eval -0.3] [%clk 0:04:59] } 40. gxf4 { [%eval -0.3] [%clk 0:06:53] } 40... Nd3 { [%eval -0.32] [%clk 0:05:00] } 41. Rg1 { [%eval -0.33] [%clk 0:05:58] } 41... Nxf4 { [%eval -0.06] [%clk 0:03:19] } 42. Kxf4 { [%eval -0.04] [%clk 0:03:56] } 42... e5+ { [%eval -0.04] [%clk 0:03:45] } 43. Kf5 { [%eval -0.08] [%clk 0:03:24] } 43... exd4 { [%eval -0.11] [%clk 0:04:10] } 44. cxd4 { [%eval -0.04] [%clk 0:03:16] } 44... cxb3 { [%eval -0.07] [%clk 0:04:37] } 45. axb3 { [%eval -0.1] [%clk 0:02:41] } 45... Rxb3 { [%eval -0.11] [%clk 0:05:02] } 46. Rg4?? { [%eval -2.0] } { Blunder. Ra1 was best. } { [%clk 0:02:16] } 46... Rf3+ { [%eval -2.33] [%clk 0:03:39] } 47. Rf4 { [%eval -2.38] [%clk 0:02:39] } 47... Rxf4+ { [%eval -2.28] [%clk 0:03:26] } 48. Kxf4 { [%eval -2.27] [%clk 0:03:07] } 48... a4 { [%eval -1.9] [%clk 0:03:47] } 49. Kg4 { [%eval -1.75] [%clk 0:02:53] } 49... a3?? { [%eval -0.03] } { Blunder. Rc3 was best. } { [%clk 0:02:23] } 50. Kxh4 { [%eval -0.08] [%clk 0:02:58] } 50... Ra8 { [%eval 0.0] [%clk 0:01:45] } 51. Ra2 { [%eval 0.0] [%clk 0:03:13] } 51... Ra4 { [%eval 0.0] [%clk 0:00:44] } 52. Kg5 { [%eval 0.0] [%clk 0:03:19] } 52... Ke6 { [%eval 0.0] [%clk 0:00:41] } 53. h4 { [%eval 0.0] [%clk 0:01:19] } 53... Rxd4 { [%eval 0.0] [%clk 0:00:47] } 54. Rxa3 { [%eval 0.0] [%clk 0:01:46] } 54... Rxe4 { [%eval 0.0] [%clk 0:01:07] } 55. Rf3 { [%eval -0.07] [%clk 0:01:32] } 55... Re1 { [%eval -0.07] [%clk 0:01:03] } 56. Rf6+ { [%eval -0.04] [%clk 0:01:21] } 56... Ke7 { [%eval 0.0] [%clk 0:01:27] } 57. Rf4 { [%eval 0.0] [%clk 0:01:35] } 57... f6+ { [%eval 0.0] [%clk 0:00:45] } 58. Kh6 { [%eval -0.18] [%clk 0:01:43] } 58... Kf7 { [%eval 0.0] [%clk 0:00:56] } 59. h5 { [%eval 0.0] [%clk 0:01:24] } 59... Re5 { [%eval 0.0] [%clk 0:01:01] } 60. Ra4 { [%eval 0.0] [%clk 0:01:26] } 60... Re7 { [%eval 0.0] [%clk 0:01:09] } 61. Ra8 { [%eval 0.0] [%clk 0:01:40] } 61... d5 { [%eval 0.0] [%clk 0:00:48] } 62. Kh7 { [%eval 0.0] [%clk 0:01:44] } 62... Rd7 { [%eval 0.0] [%clk 0:00:50] } 63. Rg8 { [%eval 0.0] [%clk 0:01:08] } 63... d4 { [%eval 0.0] [%clk 0:00:48] } 64. Rg7+ { [%eval 0.0] [%clk 0:01:03] } 64... Ke6 { [%eval 0.0] [%clk 0:01:15] } 65. Rxd7 { [%eval 0.0] [%clk 0:01:05] } 65... Kxd7 { [%eval 0.0] [%clk 0:01:42] } 66. Kg8 { [%eval -0.08] [%clk 0:00:54] } 66... d3 { [%eval -0.04] [%clk 0:02:04] } 67. h6 { [%eval -0.06] [%clk 0:01:20] } 67... d2 { [%eval 0.0] [%clk 0:02:30] } 68. h7 { [%eval 0.0] [%clk 0:01:45] } 68... d1=Q { [%eval 0.0] [%clk 0:02:54] } 69. h8=Q { [%eval 0.0] [%clk 0:01:45] } 69... Qg4+ { [%eval 0.0] [%clk 0:02:54] } 70. Kf8 { [%eval 0.0] [%clk 0:01:46] } 70... Ke6 { [%eval 0.0] [%clk 0:01:42] } 71. Qh2 { [%eval 0.0] [%clk 0:01:14] } 71... Qb4+ { [%eval 0.0] [%clk 0:01:01] } 72. Kg7 { [%eval -0.09] [%clk 0:00:43] } 72... Qb7+ { [%eval 0.0] [%clk 0:00:44] } 73. Kh6 { [%eval 0.0] [%clk 0:00:44] } 73... Qd5 { [%eval 0.0] [%clk 0:00:49] } 74. Qh3+?? { [%eval #-27] } { Checkmate is now unavoidable. Qg3 was best. } { [%clk 0:00:50] } 74... Kf7 { [%eval -62.53] [%clk 0:01:06] } 75. Qh5+ { [%eval -51.81] [%clk 0:00:33] } 75... Qxh5+ { [%eval -41.09] [%clk 0:01:27] } 76. Kxh5 { [%eval -51.68] [%clk 0:01:00] } 76... Ke6 { [%eval -71.37] [%clk 0:01:53] } 77. Kg4 { [%eval -80.53] [%clk 0:01:25] } 77... Ke5 { [%eval -38.08] [%clk 0:02:19] } 78. Kf3 { [%eval -80.53] [%clk 0:01:49] } 78... Kf5 { [%eval -68.08] [%clk 0:02:44] } 0-1