Event: Round 4: Melero Sanchez, Pere - Duong, Thanh Nha
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-50/round-4/falyFzrg/kZIICNE8
Date: 2025-10-24
White: Melero Sanchez, Pere
WhiteElo: 1976
Black: Duong, Thanh Nha
BlackTitle: IM
BlackElo: 2161
Result: 0-1
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:02] } 1... Nf6 { [%eval 0.19] [%clk 1:30:45] } 2. c4 { [%eval 0.18] [%clk 1:30:23] } 2... e6 { [%eval 0.14] [%clk 1:31:09] } 3. Nc3 { [%eval 0.09] [%clk 1:30:44] } 3... Bb4 { [%eval 0.15] [%clk 1:31:24] } 4. e3 { [%eval 0.06] [%clk 1:30:39] } 4... b6 { [%eval 0.31] [%clk 1:31:16] } 5. Bd3 { [%eval 0.13] [%clk 1:30:39] } 5... Bb7 { [%eval 0.21] [%clk 1:31:33] } 6. f3 { [%eval 0.0] [%clk 1:30:44] } 6... c5 { [%eval 0.0] [%clk 1:30:09] } 7. Ne2 { [%eval -0.13] [%clk 1:30:21] } 7... O-O { [%eval 0.0] [%clk 1:29:08] } 8. O-O { [%eval -0.08] [%clk 1:30:16] } 8... cxd4 { [%eval -0.09] [%clk 1:27:21] } 9. exd4 { [%eval -0.17] [%clk 1:30:09] } 9... d5 { [%eval -0.23] [%clk 1:27:28] } 10. Bg5 { [%eval -0.49] [%clk 1:24:43] } 10... dxc4 { [%eval -0.5] [%clk 1:24:13] } 11. Bxc4 { [%eval -0.46] [%clk 1:25:04] } 11... Be7 { [%eval -0.46] [%clk 1:22:36] } 12. Qc2 { [%eval -0.57] [%clk 1:18:54] } 12... Nc6 { [%eval -0.57] [%clk 1:22:37] } 13. Rad1 { [%eval -0.57] [%clk 1:18:12] } 13... Nb4 { [%eval -0.53] [%clk 1:20:52] } 14. Qb1 { [%eval -0.63] [%clk 1:15:27] } 14... Rc8 { [%eval -0.61] [%clk 1:20:09] } 15. Bb3 { [%eval -0.7] [%clk 1:12:26] } 15... Nfd5 { [%eval -0.48] [%clk 1:10:47] } 16. Bc1 { [%eval -0.85] [%clk 1:09:23] } 16... Nf6 { [%eval -0.64] [%clk 1:08:29] } 17. Ne4 { [%eval -0.93] [%clk 1:00:02] } 17... Bd5 { [%eval -0.68] [%clk 1:02:28] } 18. Bxd5 { [%eval -0.74] [%clk 0:54:20] } 18... Nbxd5 { [%eval -0.81] [%clk 1:01:39] } 19. a3 { [%eval -0.83] [%clk 0:46:35] } 19... Qc7 { [%eval -0.9] [%clk 1:01:19] } 20. Qd3 { [%eval -0.82] [%clk 0:43:45] } 20... Rfd8 { [%eval -0.52] [%clk 0:59:32] } 21. f4?! { [%eval -1.41] } { Inaccuracy. Bg5 was best. } { [%clk 0:39:32] } 21... g6 { [%eval -1.31] [%clk 0:57:41] } 22. h3 { [%eval -1.46] [%clk 0:35:05] } 22... Qc2 { [%eval -1.03] [%clk 0:54:02] } 23. N4c3 { [%eval -0.96] [%clk 0:29:31] } 23... Qxd3 { [%eval -0.5] [%clk 0:49:39] } 24. Rxd3 { [%eval -0.55] [%clk 0:29:59] } 24... h5 { [%eval -0.66] [%clk 0:47:46] } 25. g3 { [%eval -0.76] [%clk 0:25:36] } 25... Bf8 { [%eval -0.45] [%clk 0:47:52] } 26. Kh1 { [%eval -0.88] [%clk 0:23:14] } 26... Rc4 { [%eval -0.83] [%clk 0:47:07] } 27. Rg1? { [%eval -2.1] } { Mistake. Bd2 was best. } { [%clk 0:22:00] } 27... Nxc3 { [%eval -1.97] [%clk 0:42:45] } 28. bxc3 { [%eval -2.18] [%clk 0:18:41] } 28... Ra4 { [%eval -2.17] [%clk 0:40:36] } 29. g4 { [%eval -2.18] [%clk 0:18:24] } 29... hxg4 { [%eval -2.15] [%clk 0:39:23] } 30. hxg4 { [%eval -2.06] [%clk 0:18:30] } 30... Bxa3 { [%eval -1.94] [%clk 0:38:42] } 31. Bxa3?! { [%eval -2.61] } { Inaccuracy. g5 was best. } { [%clk 0:18:31] } 31... Rxa3 { [%eval -2.31] [%clk 0:39:07] } 32. f5 { [%eval -2.28] [%clk 0:17:55] } 32... Ra2 { [%eval -2.06] [%clk 0:31:55] } 33. Re3?! { [%eval -2.84] } { Inaccuracy. Rg2 was best. } { [%clk 0:12:57] } 33... Kg7 { [%eval -2.69] [%clk 0:27:50] } 34. Rgg3 { [%eval -2.73] [%clk 0:12:47] } 34... Rh8+ { [%eval -2.45] [%clk 0:27:26] } 35. Kg2 { [%eval -2.78] [%clk 0:12:57] } 35... Nd5 { [%eval -2.64] [%clk 0:26:43] } 36. Re5 { [%eval -2.87] [%clk 0:11:51] } 36... Nf4+?! { [%eval -1.85] } { Inaccuracy. f6 was best. } { [%clk 0:18:03] } 37. Kf3 { [%eval -1.67] [%clk 0:12:05] } 37... Nxe2? { [%eval -0.07] } { Mistake. Nd3 was best. } { [%clk 0:14:13] } 38. Rxe2 { [%eval -0.34] [%clk 0:12:33] } 38... Rh2 { [%eval -0.11] [%clk 0:13:12] } 39. Re3?? { [%eval -2.98] } { Blunder. Rxa2 was best. } { [%clk 0:09:14] } 39... Rhf2+ { [%eval -3.02] [%clk 0:12:27] } 40. Ke4 { [%eval -2.9] [%clk 0:09:33] } 40... exf5+ { [%eval -3.03] [%clk 0:11:59] } 41. gxf5 { [%eval -2.87] [%clk 0:09:39] } 41... Rxf5 { [%eval -2.64] [%clk 0:12:15] } 42. d5?? { [%eval -5.32] } { Blunder. c4 was best. } { [%clk 0:08:54] } 42... Ra4+ { [%eval -5.19] [%clk 0:12:09] } 0-1