Event: Round 9: Zaja, Ivan - Culum, Sanjin
Date: 2025-07-05
White: Zaja, Ivan
WhiteTitle: GM
WhiteElo: 2421
Black: Culum, Sanjin
BlackTitle: IM
BlackElo: 2450
Result: 1-0
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:30:50] } 1... Nf6 { [%eval 0.19] [%clk 1:30:13] } 2. c4 { [%eval 0.18] [%clk 1:31:14] } 2... e6 { [%eval 0.14] [%clk 1:30:37] } 3. Nc3 { [%eval 0.09] [%clk 1:30:54] } 3... Bb4 { [%eval 0.09] [%clk 1:30:59] } 4. e3 { [%eval 0.06] [%clk 1:31:11] } 4... O-O { [%eval 0.11] [%clk 1:31:11] } 5. Bd3 { [%eval 0.0] [%clk 1:31:33] } 5... c5 { [%eval 0.13] [%clk 1:31:33] } 6. Nf3 { [%eval 0.07] [%clk 1:31:07] } 6... b6 { [%eval 0.27] [%clk 1:31:57] } 7. O-O { [%eval 0.21] [%clk 1:29:07] } 7... Bb7 { [%eval 0.17] [%clk 1:32:09] } 8. Na4 { [%eval 0.19] [%clk 1:28:06] } 8... cxd4 { [%eval 0.18] [%clk 1:32:33] } 9. exd4 { [%eval 0.17] [%clk 1:27:32] } 9... Re8 { [%eval 0.24] [%clk 1:32:56] } 10. a3 { [%eval 0.19] [%clk 1:24:50] } 10... Bf8 { [%eval 0.25] [%clk 1:32:37] } 11. Bf4 { [%eval 0.04] [%clk 1:23:07] } 11... Bxf3 { [%eval 0.08] [%clk 1:32:17] } 12. Qxf3 { [%eval -0.02] [%clk 1:22:54] } 12... Nc6 { [%eval 0.05] [%clk 1:32:42] } 13. Qh3 { [%eval -0.01] [%clk 1:19:54] } 13... h6 { [%eval 0.06] [%clk 1:31:58] } 14. Be3 { [%eval 0.08] [%clk 1:06:56] } 14... d5 { [%eval 0.09] [%clk 1:20:07] } 15. Rfd1 { [%eval -0.02] [%clk 1:04:41] } 15... Rc8 { [%eval -0.01] [%clk 0:51:52] } 16. Nc3 { [%eval -0.09] [%clk 0:58:31] } 16... Ne7?! { [%eval 0.81] } { Inaccuracy. Na5 was best. } { [%clk 0:47:19] } 17. b3?! { [%eval -0.13] } { Inaccuracy. c5 was best. } { [%clk 0:49:53] } 17... Nf5 { [%eval -0.16] [%clk 0:41:39] } 18. Bxf5 { [%eval -0.33] [%clk 0:46:04] } 18... exf5 { [%eval -0.36] [%clk 0:41:07] } 19. Qxf5 { [%eval -0.29] [%clk 0:45:56] } 19... dxc4 { [%eval -0.44] [%clk 0:41:12] } 20. bxc4 { [%eval -0.94] [%clk 0:44:59] } 20... Rxc4 { [%eval -0.96] [%clk 0:41:14] } 21. Qd3 { [%eval -0.99] [%clk 0:39:06] } 21... Rc8?! { [%eval -0.41] } { Inaccuracy. Qc8 was best. } { [%clk 0:28:08] } 22. d5 { [%eval -0.63] [%clk 0:34:59] } 22... Ng4 { [%eval -0.62] [%clk 0:24:54] } 23. Bd4 { [%eval -0.38] [%clk 0:33:45] } 23... Bc5 { [%eval 0.08] [%clk 0:20:40] } 24. Qg3 { [%eval -0.37] [%clk 0:31:28] } 24... h5 { [%eval -0.11] [%clk 0:17:29] } 25. Bxc5 { [%eval -0.1] [%clk 0:30:19] } 25... Rxc5 { [%eval -0.05] [%clk 0:17:56] } 26. d6 { [%eval -0.15] [%clk 0:30:28] } 26... Rce5 { [%eval 0.27] [%clk 0:13:15] } 27. h3 { [%eval 0.25] [%clk 0:27:55] } 27... Nf6 { [%eval 0.28] [%clk 0:13:36] } 28. Rd3 { [%eval 0.24] [%clk 0:24:30] } 28... Qd7 { [%eval 0.25] [%clk 0:12:57] } 29. Rad1 { [%eval 0.14] [%clk 0:23:32] } 29... b5 { [%eval 0.6] [%clk 0:12:10] } 30. f4 { [%eval 0.35] [%clk 0:21:52] } 30... Rc5 { [%eval 0.37] [%clk 0:11:39] } 31. Re3 { [%eval 0.32] [%clk 0:21:32] } 31... Rd8 { [%eval 0.33] [%clk 0:06:12] } 32. Ne4 { [%eval 0.0] [%clk 0:19:22] } 32... Nxe4 { [%eval 0.02] [%clk 0:06:41] } 33. Rxe4 { [%eval 0.02] [%clk 0:19:51] } 33... Qc6 { [%eval 0.05] [%clk 0:06:28] } 34. Red4 { [%eval 0.0] [%clk 0:18:12] } 34... Rc1 { [%eval 0.0] [%clk 0:06:24] } 35. Rxc1 { [%eval 0.01] [%clk 0:17:48] } 35... Qxc1+ { [%eval 0.01] [%clk 0:06:53] } 36. Kh2 { [%eval 0.03] [%clk 0:18:13] } 36... Qc6 { [%eval 0.02] [%clk 0:06:18] } 37. f5 { [%eval 0.0] [%clk 0:12:33] } 37... h4 { [%eval 0.02] [%clk 0:06:03] } 38. Qe5 { [%eval 0.0] [%clk 0:12:12] } 38... Re8 { [%eval 0.0] [%clk 0:05:15] } 39. Qf4 { [%eval 0.0] [%clk 0:11:49] } 39... Qc5?? { [%eval 4.84] } { Blunder. Re2 was best. } { [%clk 0:02:17] } 40. d7?? { [%eval 2.32] } { Blunder. f6 was best. } { [%clk 0:10:15] } 40... Rd8 { [%eval 2.17] [%clk 0:02:46] } 41. f6 { [%eval 2.16] [%clk 0:07:42] } 41... g5?? { [%eval 6.22] } { Blunder. gxf6 was best. } { [%clk 0:03:09] } 42. Qe4 { [%eval 5.83] [%clk 0:07:03] } 42... Kf8?! { [%eval 7.76] } { Inaccuracy. Qc7+ was best. } { [%clk 0:03:00] } 43. Rd1 { [%eval 7.37] [%clk 0:06:18] } 43... a5? { [%eval #17] } { Checkmate is now unavoidable. Kg8 was best. } { [%clk 0:00:45] } 44. Kh1 { [%eval #16] [%clk 0:06:03] } 44... Kg8 { [%eval 8.23] [%clk 0:00:39] } 45. Qe8+ { [%eval 7.8] [%clk 0:05:41] } 45... Qf8 { [%eval 6.21] [%clk 0:01:07] } 46. Qe5 { [%eval 6.15] [%clk 0:05:43] } 46... Kh7 { [%eval 6.05] [%clk 0:01:02] } 47. Qe7 { [%eval 6.16] [%clk 0:05:39] } 47... Qg8 { [%eval 5.86] [%clk 0:01:20] } 48. Rd5 { [%eval 6.05] [%clk 0:05:00] } 48... b4 { [%eval 6.06] [%clk 0:00:56] } 49. Rxa5 { [%eval 5.88] [%clk 0:05:00] } 49... bxa3 { [%eval 4.49] [%clk 0:00:50] } 50. Rxa3 { [%eval 4.3] [%clk 0:05:14] } 50... Rb8?! { [%eval 6.15] } { Inaccuracy. g4 was best. } { [%clk 0:00:41] } 51. Rd3 { [%eval 6.01] [%clk 0:04:46] } 51... Rd8 { [%eval 5.81] [%clk 0:00:48] } 52. Rd4 { [%eval 5.6] [%clk 0:04:00] } 52... Kg6 { [%eval 6.98] [%clk 0:00:46] } 53. Re4 { [%eval 6.91] [%clk 0:04:06] } 53... Qh8 { [%eval 6.95] [%clk 0:01:02] } 54. Rd4 { [%eval 6.88] [%clk 0:04:20] } 54... Qg8 { [%eval 6.19] [%clk 0:00:58] } 55. Rd5 { [%eval 6.16] [%clk 0:03:34] } 55... Qh8 { [%eval 6.33] [%clk 0:01:02] } 56. Qe4+ { [%eval 5.88] [%clk 0:03:27] } 56... Kh6 { [%eval 5.74] [%clk 0:01:25] } 57. Qf5 { [%eval 5.89] [%clk 0:03:30] } 57... Qg8 { [%eval 5.82] [%clk 0:01:27] } 58. Qe5 { [%eval 5.75] [%clk 0:03:05] } 58... Qg6 { [%eval 5.59] [%clk 0:01:27] } 59. Kh2 { [%eval 5.31] [%clk 0:02:41] } 59... Qg8 { [%eval 5.79] [%clk 0:01:31] } 60. Rd4 { [%eval 5.48] [%clk 0:01:52] } 60... Qh8 { [%eval 5.33] [%clk 0:00:37] } 61. Rg4 { [%eval 4.91] [%clk 0:01:47] } 61... Qg8 { [%eval 4.5] [%clk 0:00:55] } 62. Qe7 { [%eval 4.75] [%clk 0:01:47] } 62... Ra8 { [%eval 4.4] [%clk 0:00:58] } 63. Re4?? { [%eval 0.1] } { Blunder. Rd4 was best. } { [%clk 0:01:56] } 63... Qb8+ { [%eval 0.11] [%clk 0:00:50] } 64. Re5 { [%eval 0.15] [%clk 0:01:40] } 64... Qb3 { [%eval 0.07] [%clk 0:01:13] } 65. Re3 { [%eval 0.07] [%clk 0:01:42] } 65... Qb8+ { [%eval 0.1] [%clk 0:01:39] } 66. Kh1 { [%eval 0.11] [%clk 0:01:31] } 66... Qf4 { [%eval 0.28] [%clk 0:00:51] } 67. Re1 { [%eval 0.15] [%clk 0:01:43] } 67... Qd2 { [%eval 0.28] [%clk 0:01:07] } 68. Rg1 { [%eval 0.34] [%clk 0:01:18] } 68... Kg6?? { [%eval 8.23] } { Blunder. Qd5 was best. } { [%clk 0:00:59] } 69. Qe4+ { [%eval 7.35] [%clk 0:01:43] } 1-0