Event: Round 4: Nathan Felipe Filgueiras - Alexandr Fier
Date: 2023-06-20
White: Nathan Felipe Filgueiras
WhiteTitle: IM
Black: Alexandr Fier
BlackTitle: GM
Result: 0-1
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Adams Attack
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:46] } 1... c5 { [%eval 0.32] [%clk 1:30:55] } 2. Nf3 { [%eval 0.0] [%clk 1:31:12] } 2... d6 { [%eval 0.0] [%clk 1:31:21] } 3. d4 { [%eval 0.25] [%clk 1:31:35] } 3... cxd4 { [%eval 0.13] [%clk 1:31:47] } 4. Nxd4 { [%eval 0.27] [%clk 1:32:01] } 4... Nf6 { [%eval 0.3] [%clk 1:32:14] } 5. Nc3 { [%eval 0.21] [%clk 1:32:24] } 5... a6 { [%eval 0.39] [%clk 1:32:42] } 6. h3 { [%eval 0.1] [%clk 1:31:47] } 6... Nc6 { [%eval 0.32] [%clk 1:33:06] } 7. g4 { [%eval 0.3] [%clk 1:31:01] } 7... g6 { [%eval 0.24] [%clk 1:33:34] } 8. Be3 { [%eval 0.54] [%clk 1:27:45] } 8... Nxd4 { [%eval 0.41] [%clk 1:33:58] } 9. Qxd4 { [%eval 0.43] [%clk 1:24:51] } 9... Bg7 { [%eval 0.53] [%clk 1:33:56] } 10. O-O-O { [%eval 0.35] [%clk 1:15:43] } 10... O-O { [%eval 0.47] [%clk 1:34:16] } 11. Qd2 { [%eval 0.27] [%clk 1:16:10] } 11... Be6 { [%eval 0.36] [%clk 1:30:53] } 12. Kb1 { [%eval 0.33] [%clk 1:12:59] } 12... Rc8 { [%eval 0.37] [%clk 1:22:46] } 13. f3 { [%eval 0.53] [%clk 1:02:00] } 13... Nd7 { [%eval 0.57] [%clk 1:16:57] } 14. Bd4 { [%eval 0.16] [%clk 0:59:04] } 14... Bxd4 { [%eval 0.17] [%clk 1:15:52] } 15. Qxd4 { [%eval 0.11] [%clk 0:59:32] } 15... Qa5 { [%eval 0.24] [%clk 1:16:12] } 16. Nd5 { [%eval 0.06] [%clk 0:53:26] } 16... Bxd5 { [%eval 0.33] [%clk 1:16:32] } 17. Qxd5?! { [%eval -0.6] } { Inaccuracy. exd5 was best. } { [%clk 0:53:42] } 17... Qxd5 { [%eval -0.52] [%clk 1:16:25] } 18. Rxd5 { [%eval -0.5] [%clk 0:52:30] } 18... Rc5 { [%eval -0.39] [%clk 1:16:11] } 19. Rxc5 { [%eval -0.38] [%clk 0:36:30] } 19... Nxc5 { [%eval -0.35] [%clk 1:16:37] } 20. Bc4 { [%eval -0.44] [%clk 0:36:50] } 20... Kg7 { [%eval -0.53] [%clk 1:16:33] } 21. Re1 { [%eval -0.38] [%clk 0:34:17] } 21... Rd8 { [%eval -0.12] [%clk 1:12:06] } 22. b4 { [%eval -0.12] [%clk 0:28:25] } 22... Nd7 { [%eval -0.16] [%clk 1:12:06] } 23. f4 { [%eval -0.16] [%clk 0:27:29] } 23... h6 { [%eval -0.1] [%clk 1:05:55] } 24. Rd1 { [%eval -0.54] [%clk 0:26:45] } 24... g5 { [%eval -0.51] [%clk 1:05:57] } 25. f5 { [%eval -0.5] [%clk 0:24:59] } 25... Ne5 { [%eval -0.36] [%clk 1:06:00] } 26. Bd5 { [%eval -0.45] [%clk 0:25:09] } 26... b6 { [%eval -0.64] [%clk 1:05:55] } 27. Kb2 { [%eval -0.58] [%clk 0:24:50] } 27... Kf6 { [%eval -0.44] [%clk 1:05:52] } 28. Rf1 { [%eval -0.93] [%clk 0:24:21] } 28... Rh8 { [%eval -0.97] [%clk 1:06:04] } 29. Rg1 { [%eval -0.9] [%clk 0:22:32] } 29... e6 { [%eval -0.91] [%clk 1:05:55] } 30. Bb3 { [%eval -1.37] [%clk 0:22:33] } 30... h5 { [%eval -1.24] [%clk 1:05:31] } 31. gxh5 { [%eval -1.23] [%clk 0:21:29] } 31... Rxh5 { [%eval -0.99] [%clk 0:48:07] } 32. Rd1 { [%eval -0.92] [%clk 0:18:17] } 32... Ke7 { [%eval -0.77] [%clk 0:46:19] } 33. Rg1?! { [%eval -1.77] } { Inaccuracy. fxe6 was best. } { [%clk 0:18:21] } 33... a5?! { [%eval -0.63] } { Inaccuracy. f6 was best. } { [%clk 0:46:24] } 34. bxa5 { [%eval -0.61] [%clk 0:16:29] } 34... bxa5 { [%eval -0.46] [%clk 0:46:51] } 35. Ka3 { [%eval -0.88] [%clk 0:15:35] } 35... exf5 { [%eval -0.66] [%clk 0:46:27] } 36. exf5 { [%eval -0.95] [%clk 0:15:56] } 36... Kf6 { [%eval -1.02] [%clk 0:46:55] } 37. Ka4 { [%eval -1.02] [%clk 0:15:05] } 37... Rxh3 { [%eval -1.08] [%clk 0:46:36] } 38. Kxa5 { [%eval -0.84] [%clk 0:15:24] } 38... g4 { [%eval -0.68] [%clk 0:47:02] } 39. Kb6 { [%eval -1.06] [%clk 0:15:22] } 39... Kxf5 { [%eval -0.94] [%clk 0:40:58] } 40. a4 { [%eval -0.6] [%clk 0:14:31] } 40... Nf3?! { [%eval 0.0] } { Inaccuracy. Rc3 was best. } { [%clk 0:41:13] } 41. Rg2 { [%eval -0.09] [%clk 0:08:31] } 41... Kf4 { [%eval 0.0] [%clk 0:36:01] } 42. a5 { [%eval -0.03] [%clk 0:06:51] } 42... g3 { [%eval 0.0] [%clk 0:21:49] } 43. a6 { [%eval 0.0] [%clk 0:05:42] } 43... Rh2 { [%eval 0.0] [%clk 0:22:16] } 44. a7?? { [%eval -1.81] } { Blunder. Rxg3 was best. } { [%clk 0:04:18] } 44... Rxg2 { [%eval -2.11] [%clk 0:22:41] } 45. a8=Q?! { [%eval -3.34] } { Inaccuracy. Bd5 was best. } 45... Rd2 { [%eval -3.27] [%clk 0:23:08] } 46. Qa4+ { [%eval -3.34] [%clk 0:01:32] } 46... Rd4 { [%eval -3.27] [%clk 0:22:14] } 47. Qe8 { [%eval -3.36] [%clk 0:01:22] } 47... g2 { [%eval -3.33] [%clk 0:22:38] } 48. Qxf7+ { [%eval -3.57] [%clk 0:01:50] } 48... Kg3 { [%eval -3.85] [%clk 0:22:23] } 49. c3 { [%eval -4.49] [%clk 0:01:11] } 49... Rg4 { [%eval -4.93] [%clk 0:22:24] } 0-1