Event: Round 4: Barbosa, Oliver - Johnson, Donald
Date: 2025-03-29
White: Barbosa, Oliver
WhiteTitle: GM
WhiteElo: 2425
Black: Johnson, Donald
BlackTitle: FM
BlackElo: 2326
Result: 1-0
ECO: A34
Opening: English Opening: Symmetrical Variation, Rubinstein Variation
Variant: Standard
TimeControl: 90+30

1. Nf3 { [%eval 0.14] [%clk 1:04:16] } 1... c5 { [%eval 0.25] [%clk 1:30:14] } 2. c4 { [%eval 0.26] [%clk 1:04:33] } 2... Nf6 { [%eval 0.26] [%clk 1:30:31] } 3. g3 { [%eval 0.12] [%clk 1:04:57] } 3... Nc6 { [%eval 0.39] [%clk 1:30:23] } 4. Bg2 { [%eval 0.07] [%clk 1:05:21] } 4... d5 { [%eval 0.03] [%clk 1:30:44] } 5. cxd5 { [%eval 0.07] [%clk 1:05:46] } 5... Nxd5 { [%eval 0.05] [%clk 1:31:12] } 6. Nc3 { [%eval 0.02] [%clk 1:06:08] } 6... Nc7 { [%eval 0.0] [%clk 1:31:31] } 7. O-O { [%eval 0.0] [%clk 1:06:30] } 7... e5 { [%eval 0.0] [%clk 1:31:33] } 8. b3 { [%eval 0.01] [%clk 1:03:55] } 8... Be7 { [%eval 0.0] [%clk 1:28:54] } 9. Bb2 { [%eval 0.02] [%clk 1:04:16] } 9... O-O { [%eval 0.0] [%clk 1:28:06] } 10. Rc1 { [%eval -0.02] [%clk 1:04:32] } 10... b6 { [%eval 0.01] [%clk 1:26:14] } 11. Ne1 { [%eval -0.35] [%clk 0:56:58] } 11... Qe8 { [%eval -0.3] [%clk 1:22:39] } 12. Nd3 { [%eval -0.3] [%clk 0:52:35] } 12... f6? { [%eval 0.9] } { Mistake. Ba6 was best. } { [%clk 1:18:24] } 13. b4 { [%eval 1.16] [%clk 0:49:07] } 13... c4 { [%eval 1.66] [%clk 1:14:37] } 14. Nd5 { [%eval 1.64] [%clk 0:48:20] } 14... Nxd5 { [%eval 1.6] [%clk 1:12:19] } 15. Bxd5+ { [%eval 1.69] [%clk 0:48:24] } 15... Kh8 { [%eval 1.62] [%clk 1:12:48] } 16. Rxc4 { [%eval 1.67] [%clk 0:46:05] } 16... Bb7 { [%eval 1.67] [%clk 1:12:22] } 17. Qc2 { [%eval 1.73] [%clk 0:42:15] } 17... Nd8 { [%eval 1.58] [%clk 1:05:09] } 18. Bxb7 { [%eval 1.6] [%clk 0:41:41] } 18... Nxb7 { [%eval 1.69] [%clk 1:05:38] } 19. Rc7 { [%eval 1.31] [%clk 0:39:17] } 19... Nd8 { [%eval 1.31] [%clk 1:02:18] } 20. Qc4?! { [%eval 0.68] } { Inaccuracy. a4 was best. } { [%clk 0:30:06] } 20... Bd6 { [%eval 0.77] [%clk 0:56:47] } 21. Qd5 { [%eval 0.61] [%clk 0:28:39] } 21... Nf7 { [%eval 0.72] [%clk 0:52:40] } 22. Rc4 { [%eval 0.61] [%clk 0:22:57] } 22... Rd8 { [%eval 0.65] [%clk 0:52:31] } 23. Qg2 { [%eval 0.7] [%clk 0:21:18] } 23... Qe6 { [%eval 0.66] [%clk 0:51:42] } 24. Rfc1 { [%eval 0.76] [%clk 0:20:43] } 24... Rfe8 { [%eval 0.91] [%clk 0:50:45] } 25. a3 { [%eval 0.74] [%clk 0:08:53] } 25... Bf8 { [%eval 0.86] [%clk 0:37:17] } 26. R4c2 { [%eval 0.59] [%clk 0:08:30] } 26... Qg4 { [%eval 0.64] [%clk 0:34:00] } 27. f3 { [%eval 0.55] [%clk 0:07:23] } 27... Qe6 { [%eval 0.55] [%clk 0:33:49] } 28. Nf2 { [%eval 0.51] [%clk 0:06:20] } 28... Qb3 { [%eval 0.5] [%clk 0:32:52] } 29. Qh3 { [%eval 0.3] [%clk 0:05:59] } 29... a5 { [%eval 0.29] [%clk 0:31:25] } 30. bxa5 { [%eval 0.33] [%clk 0:05:28] } 30... bxa5 { [%eval 0.16] [%clk 0:31:54] } 31. Ne4 { [%eval 0.15] [%clk 0:04:45] } 31... a4 { [%eval 0.27] [%clk 0:26:36] } 32. Qh4 { [%eval 0.08] [%clk 0:02:54] } 32... Bxa3 { [%eval 0.0] [%clk 0:24:35] } 33. Bxa3 { [%eval 0.0] [%clk 0:03:09] } 33... Qxa3 { [%eval 0.0] [%clk 0:25:04] } 34. Rc7 { [%eval 0.0] [%clk 0:03:23] } 34... Qf8 { [%eval 0.0] [%clk 0:23:38] } 35. R1c4 { [%eval 0.0] [%clk 0:03:02] } 35... Rd4 { [%eval 0.0] [%clk 0:12:48] } 36. Rxd4 { [%eval 0.0] [%clk 0:03:26] } 36... exd4 { [%eval 0.0] [%clk 0:13:17] } 37. Qh5 { [%eval 0.0] [%clk 0:03:55] } 37... Re7?? { [%eval 2.18] } { Blunder. Ng5 was best. } { [%clk 0:12:24] } 38. Qc5 { [%eval 2.3] [%clk 0:04:05] } 38... Re8 { [%eval 2.06] [%clk 0:12:34] } 39. Qxf8+ { [%eval 2.17] [%clk 0:03:38] } 39... Rxf8 { [%eval 1.99] [%clk 0:13:03] } 40. Ra7?! { [%eval 1.28] } { Inaccuracy. Nc5 was best. } { [%clk 0:04:08] } 40... Ne5? { [%eval 3.17] } { Mistake. d3 was best. } { [%clk 0:12:15] } 41. d3 { [%eval 2.88] [%clk 0:03:43] } 41... h6 { [%eval 3.4] [%clk 0:12:44] } 42. Rxa4 { [%eval 3.3] [%clk 0:04:06] } 42... Rd8 { [%eval 3.21] [%clk 0:13:08] } 43. Nc5 { [%eval 2.83] [%clk 0:04:16] } 43... Rd5?! { [%eval 3.86] } { Inaccuracy. Nc6 was best. } { [%clk 0:12:32] } 44. Ne6 { [%eval 3.88] [%clk 0:04:36] } 44... Nc6 { [%eval 4.1] [%clk 0:12:59] } 45. Ra6 { [%eval 4.04] [%clk 0:03:42] } 45... Nb4 { [%eval 4.26] [%clk 0:11:59] } 46. Ra8+ { [%eval 4.22] [%clk 0:03:48] } 46... Kh7 { [%eval 4.2] [%clk 0:12:27] } 47. Ra7 { [%eval 4.27] [%clk 0:04:06] } 47... Re5 { [%eval 4.21] [%clk 0:11:48] } 48. Nxd4 { [%eval 4.17] [%clk 0:04:01] } 48... Rd5 { [%eval 4.14] [%clk 0:10:02] } 49. Ne6 { [%eval 4.17] [%clk 0:04:00] } 49... Re5 { [%eval 4.23] [%clk 0:10:27] } 50. Nf4 { [%eval 4.17] [%clk 0:03:38] } 50... Nc6 { [%eval 4.4] [%clk 0:10:31] } 51. Rd7 { [%eval 4.34] [%clk 0:03:53] } 51... Kg8 { [%eval 4.42] [%clk 0:10:02] } 52. Kf2 { [%eval 4.36] [%clk 0:04:16] } 52... Nb4 { [%eval 4.49] [%clk 0:09:45] } 53. g4 { [%eval 4.69] [%clk 0:04:17] } 53... g5 { [%eval 4.73] [%clk 0:09:52] } 54. Nh5 { [%eval 4.76] [%clk 0:04:28] } 54... Re6 { [%eval 4.75] [%clk 0:09:57] } 55. Ng7 { [%eval 4.67] [%clk 0:04:24] } 55... Re5 { [%eval 4.84] [%clk 0:10:13] } 56. Nf5 { [%eval 4.74] [%clk 0:04:39] } 56... h5?! { [%eval 6.14] } { Inaccuracy. Ra5 was best. } { [%clk 0:10:22] } 57. Ne7+ { [%eval 5.84] [%clk 0:04:52] } 57... Kf7 { [%eval 7.26] [%clk 0:10:35] } 58. Nc6+ { [%eval 7.28] [%clk 0:05:17] } 58... Ke6 { [%eval 7.36] [%clk 0:11:04] } 59. Nxe5 { [%eval 7.14] [%clk 0:05:35] } 59... fxe5 { [%eval 8.26] [%clk 0:11:33] } 60. Rb7 { [%eval 8.13] [%clk 0:05:57] } 60... Kd5 { [%clk 0:11:57] } 1-0