Event: Round 4: Donchenko, Alexander - Manafov, Vugar
Date: 2025-03-18
White: Donchenko, Alexander
WhiteTitle: GM
WhiteElo: 2627
Black: Manafov, Vugar
BlackTitle: IM
BlackElo: 2428
Result: 1/2-1/2
ECO: B42
Opening: Sicilian Defense: Kan Variation, Polugaevsky Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:43] } 2. Nf3 { [%eval 0.2] [%clk 1:31:15] } 2... e6 { [%eval 0.28] [%clk 1:31:03] } 3. d4 { [%eval 0.4] [%clk 1:31:30] } 3... cxd4 { [%eval 0.29] [%clk 1:31:20] } 4. Nxd4 { [%eval 0.23] [%clk 1:31:54] } 4... a6 { [%eval 0.42] [%clk 1:31:36] } 5. Bd3 { [%eval 0.45] [%clk 1:31:54] } 5... Bc5 { [%eval 0.42] [%clk 1:31:15] } 6. Nb3 { [%eval 0.34] [%clk 1:32:01] } 6... Ba7 { [%eval 0.36] [%clk 1:31:18] } 7. Bf4 { [%eval 0.31] [%clk 1:30:44] } 7... d6 { [%eval 0.33] [%clk 1:30:17] } 8. Qd2 { [%eval 0.42] [%clk 1:30:13] } 8... e5 { [%eval 0.47] [%clk 1:29:52] } 9. Bg3 { [%eval 0.43] [%clk 1:29:15] } 9... h5 { [%eval 0.34] [%clk 1:28:50] } 10. h3 { [%eval 0.38] [%clk 1:28:28] } 10... Rh6 { [%eval 0.4] [%clk 1:28:46] } 11. Nc3 { [%eval 0.47] [%clk 1:19:16] } 11... Rg6 { [%eval 0.63] [%clk 1:28:05] } 12. Bf1 { [%eval 0.34] [%clk 1:18:05] } 12... Nc6 { [%eval 0.41] [%clk 1:19:11] } 13. O-O-O { [%eval 0.38] [%clk 1:17:22] } 13... h4 { [%eval 0.34] [%clk 1:15:28] } 14. Bh2 { [%eval 0.35] [%clk 1:17:33] } 14... Nf6 { [%eval 0.64] [%clk 1:14:56] } 15. f4?! { [%eval -0.2] } { Inaccuracy. Kb1 was best. } { [%clk 1:00:17] } 15... exf4 { [%eval -0.19] [%clk 1:14:39] } 16. Bxf4 { [%eval -0.13] [%clk 0:59:19] } 16... Nh5 { [%eval -0.14] [%clk 1:14:44] } 17. Be3 { [%eval -0.18] [%clk 0:57:27] } 17... Bxe3 { [%eval -0.19] [%clk 1:13:29] } 18. Qxe3 { [%eval -0.19] [%clk 0:57:55] } 18... Qg5 { [%eval -0.18] [%clk 1:07:02] } 19. Qxg5 { [%eval -0.1] [%clk 0:57:52] } 19... Rxg5 { [%eval -0.15] [%clk 1:07:28] } 20. Nd5 { [%eval -0.27] [%clk 0:55:11] } 20... Rb8 { [%eval -0.02] [%clk 1:03:59] } 21. Be2 { [%eval 0.0] [%clk 0:52:09] } 21... Ng3 { [%eval 0.0] [%clk 1:02:51] } 22. Rhe1 { [%eval -0.09] [%clk 0:52:36] } 22... Be6 { [%eval 0.0] [%clk 0:57:10] } 23. Bf3 { [%eval -0.16] [%clk 0:49:38] } 23... Ne5 { [%eval -0.15] [%clk 0:51:51] } 24. Nf4 { [%eval -0.18] [%clk 0:46:49] } 24... Nxf3 { [%eval -0.14] [%clk 0:44:01] } 25. gxf3 { [%eval -0.16] [%clk 0:47:01] } 25... Nh5 { [%eval -0.1] [%clk 0:43:26] } 26. Nxe6 { [%eval -0.06] [%clk 0:28:27] } 26... fxe6 { [%eval -0.15] [%clk 0:43:42] } 27. Rxd6 { [%eval -0.13] [%clk 0:28:52] } 27... Nf4 { [%eval -0.16] [%clk 0:41:47] } 28. Nd4? { [%eval -1.7] } { Mistake. e5 was best. } { [%clk 0:26:38] } 28... Rd8 { [%eval -1.52] [%clk 0:37:34] } 29. Rxd8+ { [%eval -1.4] [%clk 0:16:58] } 29... Kxd8 { [%eval -1.38] [%clk 0:37:45] } 30. Ne2 { [%eval -1.83] [%clk 0:17:12] } 30... e5 { [%eval -1.79] [%clk 0:29:11] } 31. Nxf4 { [%eval -1.78] [%clk 0:15:10] } 31... exf4 { [%eval -1.68] [%clk 0:29:26] } 32. Kd2 { [%eval -1.9] [%clk 0:15:35] } 32... Rg3 { [%eval -1.78] [%clk 0:26:49] } 33. Ke2 { [%eval -1.64] [%clk 0:14:43] } 33... Rg2+ { [%eval -1.32] [%clk 0:21:25] } 34. Kf1 { [%eval -1.26] [%clk 0:10:31] } 34... Rh2 { [%eval -0.95] [%clk 0:21:48] } 35. b4? { [%eval -2.48] } { Mistake. c4 was best. } { [%clk 0:03:37] } 35... b5?! { [%eval -1.82] } { Inaccuracy. Rxh3 was best. } { [%clk 0:20:42] } 36. c3? { [%eval -3.47] } { Mistake. Rd1+ was best. } { [%clk 0:02:34] } 36... Ke7 { [%eval -3.28] [%clk 0:20:02] } 37. Kg1 { [%eval -3.48] [%clk 0:01:01] } 37... Rxh3 { [%eval -3.67] [%clk 0:16:06] } 38. Kg2?! { [%eval -4.71] } { Inaccuracy. Kf2 was best. } { [%clk 0:01:29] } 38... Rg3+ { [%eval -4.55] [%clk 0:16:32] } 39. Kf2 { [%eval -4.32] [%clk 0:01:55] } 39... Ke6?! { [%eval -3.2] } { Inaccuracy. g5 was best. } { [%clk 0:16:52] } 40. Rd1 { [%eval -3.63] [%clk 0:00:31] } 40... g5 { [%eval -3.43] [%clk 0:15:05] } 41. Rd8 { [%eval -3.32] [%clk 0:25:32] } 41... h3 { [%eval -3.13] [%clk 0:44:04] } 42. Rh8 { [%eval -3.41] [%clk 0:24:33] } 42... Rg2+ { [%eval -3.62] [%clk 0:43:36] } 43. Kf1 { [%eval -3.29] [%clk 0:24:56] } 43... Rc2 { [%eval -3.38] [%clk 0:43:21] } 44. Rxh3 { [%eval -3.14] [%clk 0:24:37] } 44... Rxc3 { [%eval -3.79] [%clk 0:43:26] } 45. Ke2 { [%eval -3.79] [%clk 0:13:28] } 45... Re3+ { [%eval -3.53] [%clk 0:41:16] } 46. Kf2 { [%eval -3.54] [%clk 0:11:26] } 46... Ra3 { [%eval -3.27] [%clk 0:41:28] } 47. Rh8 { [%eval -3.93] [%clk 0:11:20] } 47... Rxa2+ { [%eval -3.76] [%clk 0:41:26] } 48. Kf1 { [%eval -3.88] [%clk 0:10:29] } 48... Ra1+ { [%eval -3.49] [%clk 0:36:51] } 49. Kg2 { [%eval -3.3] [%clk 0:09:57] } 49... Ra2+ { [%eval -3.58] [%clk 0:37:04] } 50. Kf1 { [%eval -3.28] [%clk 0:10:23] } 50... Ra1+?? { [%eval -0.46] } { Blunder. Ra4 was best. } { [%clk 0:28:45] } 51. Kg2 { [%eval -0.54] [%clk 0:10:40] } 51... Ra2+ { [%eval 0.0] [%clk 0:24:48] } 1/2-1/2