Event: Round 4: Arias Formoso, Rodolfo - Smith, Robert W
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-4/9mgBGVnn/NYZIlIpV
Date: 2025-10-24
White: Arias Formoso, Rodolfo
WhiteElo: 1928
Black: Smith, Robert W
BlackTitle: FM
BlackElo: 2106
Result: 1/2-1/2
ECO: A48
Opening: London System, with Be2
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:30:57] } 2. Nf3 { [%eval 0.11] [%clk 1:30:58] } 2... g6 { [%eval 0.22] [%clk 1:30:42] } 3. Bf4 { [%eval 0.1] [%clk 1:29:58] } 3... d6 { [%eval 0.25] [%clk 1:30:18] } 4. e3 { [%eval 0.05] [%clk 1:29:44] } 4... Bg7 { [%eval 0.0] [%clk 1:29:54] } 5. Be2 { [%eval 0.01] [%clk 1:29:35] } 5... O-O { [%eval 0.07] [%clk 1:29:31] } 6. c4 { [%eval 0.0] [%clk 1:29:15] } 6... c6 { [%eval 0.33] [%clk 1:25:53] } 7. Nc3 { [%eval 0.31] [%clk 1:27:17] } 7... Qa5 { [%eval 0.74] [%clk 1:25:38] } 8. O-O { [%eval 0.77] [%clk 1:25:02] } 8... Nbd7 { [%eval 1.09] [%clk 1:24:44] } 9. a3 { [%eval 0.74] [%clk 1:19:57] } 9... e5 { [%eval 0.69] [%clk 1:21:09] } 10. b4 { [%eval 0.47] [%clk 1:19:54] } 10... Qc7 { [%eval 0.48] [%clk 1:21:35] } 11. Bg3 { [%eval 0.54] [%clk 1:15:43] } 11... Nh5 { [%eval 0.48] [%clk 1:19:47] } 12. Bh4 { [%eval 0.68] [%clk 1:14:35] } 12... Bf6 { [%eval 0.87] [%clk 1:11:54] } 13. Rc1 { [%eval 0.64] [%clk 1:06:25] } 13... Qd8 { [%eval 1.01] [%clk 1:03:50] } 14. Bxf6 { [%eval 0.94] [%clk 1:04:58] } 14... Nhxf6 { [%eval 1.04] [%clk 1:04:14] } 15. d5 { [%eval 0.5] [%clk 0:52:35] } 15... c5 { [%eval 0.52] [%clk 1:03:33] } 16. Nd2 { [%eval 0.29] [%clk 0:52:08] } 16... a5 { [%eval 0.46] [%clk 1:01:50] } 17. Nb5?! { [%eval -0.57] } { Inaccuracy. b5 was best. } { [%clk 0:51:34] } 17... Qb6? { [%eval 0.71] } { Mistake. axb4 was best. } { [%clk 0:56:12] } 18. Nb3?? { [%eval -1.05] } { Blunder. bxa5 was best. } { [%clk 0:45:10] } 18... axb4 { [%eval -0.54] [%clk 0:55:59] } 19. axb4?! { [%eval -1.47] } { Inaccuracy. Ra1 was best. } { [%clk 0:45:27] } 19... cxb4 { [%eval -1.41] [%clk 0:53:43] } 20. Qe1 { [%eval -1.39] [%clk 0:45:47] } 20... Ra2 { [%eval -1.11] [%clk 0:49:54] } 21. Ra1 { [%eval -1.2] [%clk 0:40:34] } 21... Rb2?! { [%eval -0.22] } { Inaccuracy. Rxa1 was best. } { [%clk 0:23:45] } 22. Bd1?? { [%eval -2.32] } { Blunder. Nd2 was best. } { [%clk 0:38:38] } 22... Nc5?? { [%eval -0.21] } { Blunder. Nxd5 was best. } { [%clk 0:24:02] } 23. Qxb4 { [%eval -0.2] [%clk 0:38:14] } 23... Nfe4 { [%eval -0.19] [%clk 0:24:07] } 24. Qa3 { [%eval -0.2] [%clk 0:27:20] } 24... Rxb3 { [%eval -0.19] [%clk 0:22:14] } 25. Bxb3 { [%eval -0.26] [%clk 0:27:04] } 25... Nd2 { [%eval -0.22] [%clk 0:22:43] } 26. Bc2 { [%eval -0.25] [%clk 0:24:10] } 26... Nxf1 { [%eval -0.29] [%clk 0:22:16] } 27. Kxf1 { [%eval -0.51] [%clk 0:22:33] } 27... Bd7 { [%eval -0.56] [%clk 0:21:43] } 28. Nc3 { [%eval -0.49] [%clk 0:19:39] } 28... f5 { [%eval -0.2] [%clk 0:18:15] } 29. Rb1?! { [%eval -0.75] } { Inaccuracy. Ne2 was best. } { [%clk 0:19:07] } 29... Qd8 { [%eval -0.78] [%clk 0:18:27] } 30. Ba4 { [%eval -1.07] [%clk 0:14:18] } 30... f4?! { [%eval -0.44] } { Inaccuracy. Bc8 was best. } { [%clk 0:12:59] } 31. Bxd7 { [%eval -0.35] [%clk 0:13:52] } 31... Qxd7 { [%eval -0.17] [%clk 0:13:24] } 32. exf4 { [%eval -0.25] [%clk 0:10:25] } 32... Qf5 { [%eval -0.28] [%clk 0:11:06] } 33. Qc1 { [%eval -0.27] [%clk 0:07:37] } 33... Qd3+ { [%eval -0.26] [%clk 0:09:47] } 34. Kg1 { [%eval -0.37] [%clk 0:07:26] } 34... Rxf4 { [%eval -0.17] [%clk 0:10:12] } 35. Nb5 { [%eval -0.4] [%clk 0:04:13] } 35... Rxc4 { [%eval -0.29] [%clk 0:02:58] } 36. Qf1 { [%eval -0.41] [%clk 0:03:39] } 36... Qxf1+ { [%eval -0.04] [%clk 0:01:46] } 37. Kxf1 { [%eval 0.0] [%clk 0:01:29] } 37... Ne4 { [%eval 0.0] [%clk 0:02:15] } 38. Rb2 { [%eval -0.52] [%clk 0:01:13] } 38... Rc5 { [%eval -0.45] [%clk 0:01:30] } 39. f3 { [%eval -0.44] [%clk 0:01:05] } 39... Nf6 { [%eval 0.0] [%clk 0:01:16] } 40. Nxd6 { [%eval 0.0] [%clk 0:00:49] } 40... Rxd5 { [%eval 0.0] [%clk 0:01:33] } 41. Nc4 { [%eval 0.0] [%clk 0:25:20] } 41... Rc5 { [%eval 0.0] [%clk 0:27:56] } 42. Nd6 { [%eval -0.01] [%clk 0:24:41] } 42... Rd5 { [%eval 0.0] [%clk 0:28:17] } 43. Nc4 { [%eval -0.02] [%clk 0:24:20] } 43... e4 { [%eval 0.0] [%clk 0:26:55] } 44. fxe4 { [%eval 0.0] [%clk 0:20:35] } 44... Nxe4 { [%eval -0.07] [%clk 0:27:15] } 45. Rxb7 { [%eval -0.01] [%clk 0:19:40] } 45... Nd2+ { [%eval 0.0] [%clk 0:27:38] } 46. Nxd2 { [%eval 0.0] [%clk 0:20:00] } 46... Rxd2 { [%eval 0.0] [%clk 0:28:07] } 1/2-1/2