Event: World Senior Chess Championship 2024
Site: Porto Santo, Portugal
Date: 2024-11-21
White: Tsifanskaya, Ludmila A
WhiteTitle: WIM
WhiteElo: 1955
Black: Birkholz, Olga
BlackTitle: WFM
BlackElo: 1975
Result: 0-1
ECO: B06
Opening: Modern Defense: Standard Defense
Variant: Standard
TimeControl: 90'/40+30'/G+30''

1. e4 { [%eval 0.18] [%clk 1:30:28] } 1... d6 { [%eval 0.34] [%clk 1:29:47] } 2. d4 { [%eval 0.43] [%clk 1:29:43] } 2... g6 { [%eval 0.55] [%clk 1:29:44] } 3. Nc3 { [%eval 0.46] [%clk 1:29:19] } 3... Bg7 { [%eval 0.46] [%clk 1:30:04] } 4. Nge2 { [%eval 0.4] [%clk 1:28:08] } 4... c6 { [%eval 0.48] [%clk 1:28:12] } 5. a4 { [%eval 0.42] [%clk 1:28:26] } 5... a5 { [%eval 0.51] [%clk 1:22:17] } 6. g3 { [%eval 0.42] [%clk 1:28:19] } 6... Nf6 { [%eval 0.41] [%clk 1:22:00] } 7. Bg2 { [%eval 0.39] [%clk 1:28:37] } 7... Na6 { [%eval 0.41] [%clk 1:21:35] } 8. O-O { [%eval 0.33] [%clk 1:27:43] } 8... Nb4 { [%eval 0.61] [%clk 1:21:35] } 9. h3 { [%eval 0.53] [%clk 1:26:49] } 9... O-O { [%eval 0.53] [%clk 1:18:31] } 10. Be3 { [%eval 0.31] [%clk 1:26:44] } 10... d5?! { [%eval 0.9] } { Inaccuracy. e5 was best. } { [%clk 1:13:50] } 11. e5 { [%eval 0.97] [%clk 1:22:34] } 11... Ne8 { [%eval 1.13] [%clk 1:08:18] } 12. Qd2 { [%eval 1.1] [%clk 1:20:58] } 12... Nc7 { [%eval 1.37] [%clk 1:07:46] } 13. Na2?! { [%eval 0.75] } { Inaccuracy. f4 was best. } { [%clk 1:14:21] } 13... Nxa2 { [%eval 0.83] } 14. Rxa2 { [%eval 0.67] [%clk 1:14:49] } 14... f6 { [%eval 0.75] [%clk 0:57:54] } 15. f4 { [%eval 0.7] [%clk 1:09:53] } 15... Bf5 { [%eval 0.67] [%clk 0:53:02] } 16. Raa1 { [%eval 0.77] [%clk 0:59:55] } 16... Qd7 { [%eval 0.85] [%clk 0:47:24] } 17. g4 { [%eval 0.66] [%clk 0:56:26] } 17... Be4 { [%eval 0.51] [%clk 0:47:05] } 18. Ng3 { [%eval 0.56] [%clk 0:56:06] } 18... f5 { [%eval 0.52] [%clk 0:44:18] } 19. Qe2 { [%eval 0.36] [%clk 0:44:53] } 19... e6 { [%eval 0.41] [%clk 0:39:20] } 20. Kh2 { [%eval 0.2] [%clk 0:43:31] } 20... b5 { [%eval 0.29] [%clk 0:37:46] } 21. gxf5 { [%eval -0.22] [%clk 0:37:44] } 21... exf5 { [%eval -0.19] [%clk 0:31:20] } 22. Bxe4?! { [%eval -1.03] } { Inaccuracy. axb5 was best. } { [%clk 0:35:04] } 22... dxe4 { [%eval -0.95] [%clk 0:31:08] } 23. axb5?! { [%eval -1.77] } { Inaccuracy. Qf2 was best. } { [%clk 0:32:13] } 23... cxb5 { [%eval -1.67] [%clk 0:30:59] } 24. c4 { [%eval -2.27] [%clk 0:30:30] } 24... bxc4 { [%eval -2.4] [%clk 0:30:53] } 25. Qxc4+ { [%eval -2.59] [%clk 0:30:58] } 25... Nd5 { [%eval -2.66] [%clk 0:31:07] } 26. Rfc1 { [%eval -2.53] [%clk 0:28:55] } 26... Rfb8 { [%eval -2.23] [%clk 0:27:08] } 27. Rc2?? { [%eval -4.84] } { Blunder. Bd2 was best. } { [%clk 0:27:09] } 27... Rb4? { [%eval -2.75] } { Mistake. Rc8 was best. } { [%clk 0:24:00] } 28. Qa2 { [%eval -2.79] [%clk 0:24:34] } 28... Kh8 { [%eval -2.94] [%clk 0:20:52] } 29. Bd2 { [%eval -3.35] [%clk 0:22:39] } 29... Rxd4 { [%eval -3.29] [%clk 0:21:00] } 30. Ne2 { [%eval -3.06] [%clk 0:21:08] } 30... Rd3 { [%eval -3.22] [%clk 0:18:57] } 31. Bxa5?! { [%eval -4.12] } { Inaccuracy. Rg1 was best. } { [%clk 0:18:39] } 31... Bh6?? { [%eval 0.13] } { Blunder. g5 was best. } { [%clk 0:09:13] } 32. Qc4?? { [%eval -4.03] } { Blunder. e6 was best. } { [%clk 0:17:17] } 32... Qa7 { [%eval -3.94] [%clk 0:06:47] } 33. Qc5 { [%eval -3.89] [%clk 0:15:49] } 33... Qxc5 { [%eval -3.94] [%clk 0:07:00] } 34. Rxc5 { [%eval -3.87] [%clk 0:16:17] } 34... Nxf4 { [%eval -3.75] [%clk 0:06:15] } 35. Ng1 { [%eval -4.61] [%clk 0:15:11] } 35... Ne6 { [%eval -4.58] [%clk 0:06:07] } 36. Rc6 { [%eval -4.71] [%clk 0:15:06] } 36... Nd4 { [%eval -4.75] [%clk 0:06:02] } 37. e6 { [%eval -4.74] [%clk 0:12:36] } 37... Bf4+ { [%eval -4.65] [%clk 0:05:36] } 38. Kh1 { [%eval -4.76] [%clk 0:12:54] } 38... Kg8 { [%eval -4.6] [%clk 0:01:37] } 39. Bc3?? { [%eval #-8] } { Checkmate is now unavoidable. Rc4 was best. } { [%clk 0:11:55] } 39... Re8?? { [%eval -3.88] } { Lost forced checkmate sequence. Rxa1 was best. } { [%clk 0:01:21] } 40. Bxd4 { [%eval -3.97] [%clk 0:11:17] } 40... Rxd4 { [%eval -4.03] [%clk 0:01:38] } 41. Ne2 { [%eval -3.84] [%clk 0:11:39] } 41... Rd6 { [%eval -3.87] [%clk 0:01:11] } 42. Raa6 { [%eval -4.49] [%clk 0:08:16] } 42... Rxc6 { [%eval -4.37] [%clk 0:28:42] } 43. Rxc6 { [%eval -4.32] [%clk 0:38:42] } 43... Be5 { [%eval -4.17] [%clk 0:29:01] } 44. Nc3 { [%eval -4.72] [%clk 0:35:02] } 44... Bxc3 { [%eval -4.89] [%clk 0:28:50] } 45. bxc3 { [%eval -4.86] [%clk 0:35:27] } 45... Re7 { [%eval -4.79] [%clk 0:28:42] } 46. Kg2 { [%eval -4.76] [%clk 0:35:37] } 46... Kg7 { [%eval -4.58] [%clk 0:29:10] } 0-1