Event: Day 4 | Match 5.2: Zhongyi Tan - Alexandra Kosteniuk
Date: 2023-06-25
White: Zhongyi Tan
Black: Alexandra Kosteniuk
Result: 0-1
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 0:15:17] } 1... Nf6 { [%eval 0.28] [%clk 0:15:19] } 2. c4 { [%eval 0.16] [%clk 0:15:25] } 2... e6 { [%eval 0.23] [%clk 0:15:28] } 3. Nc3 { [%eval 0.05] [%clk 0:15:33] } 3... Bb4 { [%eval 0.25] [%clk 0:15:36] } 4. Nf3 { [%eval 0.0] [%clk 0:15:41] } 4... b6 { [%eval 0.18] [%clk 0:15:38] } 5. e3 { [%eval 0.21] [%clk 0:15:49] } 5... Ne4 { [%eval 0.44] [%clk 0:15:39] } 6. Qc2 { [%eval 0.33] [%clk 0:15:19] } 6... Bb7 { [%eval 0.38] [%clk 0:15:46] } 7. Bd3 { [%eval 0.0] [%clk 0:15:27] } 7... f5 { [%eval 0.44] [%clk 0:15:53] } 8. Nd2 { [%eval 0.0] [%clk 0:13:54] } 8... Nxd2?! { [%eval 0.68] } { Inaccuracy. Bxc3 was best. } { [%clk 0:12:35] } 9. Bxd2 { [%eval 0.65] [%clk 0:14:03] } 9... Bxg2 { [%eval 0.55] [%clk 0:12:26] } 10. Rg1 { [%eval 0.51] [%clk 0:14:11] } 10... Bf3 { [%eval 0.46] [%clk 0:12:34] } 11. Rxg7 { [%eval 0.73] [%clk 0:13:35] } 11... Qh4 { [%eval 0.85] [%clk 0:12:08] } 12. Nb5 { [%eval 0.43] [%clk 0:09:06] } 12... Bxd2+ { [%eval 0.41] [%clk 0:10:47] } 13. Qxd2 { [%eval 0.31] [%clk 0:08:23] } 13... Na6 { [%eval 0.42] [%clk 0:10:35] } 14. Be2 { [%eval 0.0] [%clk 0:08:18] } 14... Bb7 { [%eval -0.19] [%clk 0:09:47] } 15. O-O-O { [%eval 0.1] [%clk 0:06:53] } 15... O-O-O { [%eval 0.2] [%clk 0:09:53] } 16. Bd3? { [%eval -0.96] } { Mistake. Rdg1 was best. } { [%clk 0:05:38] } 16... Qxh2 { [%eval -1.07] [%clk 0:09:25] } 17. Nxa7+ { [%eval -1.18] [%clk 0:04:54] } 17... Kb8 { [%eval -1.11] [%clk 0:09:34] } 18. Nb5 { [%eval -1.13] [%clk 0:05:02] } 18... Rhg8 { [%eval -1.03] [%clk 0:09:36] } 19. Rxg8 { [%eval -1.5] [%clk 0:04:48] } 19... Rxg8 { [%eval -1.22] [%clk 0:09:45] } 20. Kb1?! { [%eval -2.05] } { Inaccuracy. c5 was best. } { [%clk 0:03:48] } 20... h5 { [%eval -2.19] [%clk 0:09:19] } 21. a4?! { [%eval -3.2] } { Inaccuracy. c5 was best. } { [%clk 0:03:50] } 21... h4 { [%eval -3.2] [%clk 0:09:18] } 22. a5 { [%eval -3.49] [%clk 0:03:59] } 22... h3?! { [%eval -2.31] } { Inaccuracy. bxa5 was best. } { [%clk 0:08:51] } 23. axb6 { [%eval -2.45] [%clk 0:03:59] } 23... cxb6 { [%eval -1.82] [%clk 0:08:59] } 24. c5?? { [%eval -4.56] } { Blunder. d5 was best. } { [%clk 0:04:04] } 24... Rg1 { [%eval -4.62] [%clk 0:08:20] } 25. Nd6 { [%eval -5.12] [%clk 0:02:39] } 25... Bf3 { [%eval -4.96] [%clk 0:08:19] } 26. Rc1 { [%eval -5.21] [%clk 0:02:30] } 26... Qh1 { [%eval -5.36] [%clk 0:08:06] } 27. Rxg1 { [%eval -5.92] [%clk 0:01:10] } 27... Qxg1+ { [%eval -5.52] [%clk 0:08:14] } 28. Ka2?! { [%eval -9.0] } { Inaccuracy. Kc2 was best. } { [%clk 0:01:19] } 28... h2 { [%eval -8.51] [%clk 0:07:51] } 29. Bxa6? { [%eval #-16] } { Checkmate is now unavoidable. e4 was best. } { [%clk 0:00:45] } 29... h1=Q { [%eval -13.91] [%clk 0:07:58] } 0-1