Event: Round 6: Erkhembayar, Amartaivan - Santana, Daniel Costa
Site: https://lichess.org/broadcast/fide-world-amateur-chess-championships-2025/round-6/lM0VBau8/Foxbi9AH
Date: 2025-11-10
White: Erkhembayar, Amartaivan
WhiteElo: 1994
Black: Santana, Daniel Costa
BlackElo: 1902
Result: 1-0
ECO: A48
Opening: London System
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:24:49] } 1... Nf6 { [%eval 0.19] [%clk 1:30:47] } 2. Nf3 { [%eval 0.11] [%clk 1:24:29] } 2... g6 { [%eval 0.22] [%clk 1:29:48] } 3. Bf4 { [%eval 0.1] [%clk 1:24:52] } 3... c5 { [%eval 0.36] [%clk 1:29:18] } 4. e3 { [%eval 0.0] [%clk 1:24:55] } 4... cxd4 { [%eval 0.28] [%clk 1:28:50] } 5. exd4 { [%eval 0.27] [%clk 1:25:04] } 5... Qb6 { [%eval 0.28] [%clk 1:25:55] } 6. Na3 { [%eval 0.35] [%clk 1:21:43] } 6... d6 { [%eval 0.35] [%clk 1:22:58] } 7. Nc4 { [%eval 0.31] [%clk 1:19:51] } 7... Qc7 { [%eval 0.28] [%clk 1:22:26] } 8. Bd3 { [%eval 0.18] [%clk 1:19:52] } 8... Be6 { [%eval 0.37] [%clk 1:19:01] } 9. Ne3 { [%eval 0.33] [%clk 1:19:26] } 9... Nh5 { [%eval 0.73] [%clk 1:18:42] } 10. Bg3 { [%eval 0.35] [%clk 1:17:45] } 10... Nxg3 { [%eval 0.54] [%clk 1:18:40] } 11. hxg3 { [%eval 0.46] [%clk 1:18:09] } 11... Bg7 { [%eval 0.76] [%clk 1:17:37] } 12. c3 { [%eval 0.77] [%clk 1:18:02] } 12... h6 { [%eval 1.19] [%clk 1:15:13] } 13. Qa4+?! { [%eval 0.37] } { Inaccuracy. Qc2 was best. } { [%clk 1:08:24] } 13... Bd7 { [%eval 0.46] [%clk 1:08:54] } 14. Nd5 { [%eval 0.16] [%clk 1:07:23] } 14... Qd8 { [%eval 0.19] [%clk 1:07:19] } 15. Qb3 { [%eval 0.15] [%clk 1:07:37] } 15... Qc8?! { [%eval 0.81] } { Inaccuracy. Nc6 was best. } { [%clk 1:01:28] } 16. O-O { [%eval 0.51] [%clk 1:05:09] } 16... Nc6 { [%eval 0.74] [%clk 0:59:30] } 17. Rfe1 { [%eval 0.43] [%clk 1:01:17] } 17... Kf8?! { [%eval 1.07] } { Inaccuracy. e6 was best. } { [%clk 0:53:17] } 18. Bxg6?! { [%eval 0.17] } { Inaccuracy. Rad1 was best. } { [%clk 0:50:47] } 18... fxg6 { [%eval 0.21] [%clk 0:42:29] } 19. Nh4 { [%eval 0.25] [%clk 0:51:14] } 19... Be8 { [%eval 0.29] [%clk 0:37:28] } 20. Nf4 { [%eval 0.2] [%clk 0:50:05] } 20... Bf7 { [%eval 0.08] [%clk 0:36:02] } 21. Nhxg6+ { [%eval 0.05] [%clk 0:48:08] } 21... Kg8 { [%eval 0.12] [%clk 0:34:01] } 22. d5?! { [%eval -0.58] } { Inaccuracy. Qb5 was best. } { [%clk 0:44:47] } 22... Bf6 { [%eval -0.69] [%clk 0:32:45] } 23. Nxh8 { [%eval -0.61] [%clk 0:41:28] } 23... Kxh8 { [%eval -0.61] [%clk 0:32:48] } 24. Re4 { [%eval -0.8] [%clk 0:38:22] } 24... Ne5 { [%eval -0.73] [%clk 0:31:51] } 25. Rae1 { [%eval -0.96] [%clk 0:38:36] } 25... b6 { [%eval -1.04] [%clk 0:30:55] } 26. Qd1 { [%eval -1.16] [%clk 0:37:59] } 26... Qc5? { [%eval 0.0] } { Mistake. Qf5 was best. } { [%clk 0:29:28] } 27. Nh5 { [%eval 0.0] [%clk 0:35:50] } 27... Bg7 { [%eval 0.49] [%clk 0:24:30] } 28. Nxg7 { [%eval 0.52] [%clk 0:33:08] } 28... Kxg7 { [%eval 0.53] [%clk 0:24:47] } 29. Rd4 { [%eval 0.52] [%clk 0:31:16] } 29... Qc8 { [%eval 0.64] [%clk 0:22:05] } 30. f4?! { [%eval 0.0] } { Inaccuracy. Rde4 was best. } { [%clk 0:30:53] } 30... Ng6?! { [%eval 0.96] } { Inaccuracy. Ng4 was best. } { [%clk 0:22:03] } 31. Qf3?! { [%eval 0.38] } { Inaccuracy. g4 was best. } { [%clk 0:27:27] } 31... Qd7?! { [%eval 0.98] } { Inaccuracy. Qf5 was best. } { [%clk 0:21:21] } 32. Rf1?! { [%eval 0.39] } { Inaccuracy. g4 was best. } { [%clk 0:25:59] } 32... Rf8 { [%eval 0.78] [%clk 0:18:49] } 33. f5?! { [%eval 0.0] } { Inaccuracy. g4 was best. } { [%clk 0:25:04] } 33... Ne5 { [%eval 0.0] [%clk 0:18:05] } 34. f6+ { [%eval 0.0] [%clk 0:25:11] } 34... Kh7 { [%eval 0.02] [%clk 0:15:44] } 35. Qe3 { [%eval -0.01] [%clk 0:23:15] } 35... Rg8 { [%eval 0.0] [%clk 0:14:25] } 36. Rdf4 { [%eval 0.05] [%clk 0:19:57] } 36... exf6 { [%eval 0.17] [%clk 0:13:51] } 37. Rxf6 { [%eval 0.23] [%clk 0:19:59] } 37... Rg6?? { [%eval 4.62] } { Blunder. Bg6 was best. } { [%clk 0:14:07] } 38. Qxe5 { [%eval 4.55] [%clk 0:19:15] } 38... dxe5 { [%eval 4.5] [%clk 0:07:58] } 39. Rxf7+ { [%eval 4.61] [%clk 0:19:39] } 39... Rg7 { [%eval 4.6] [%clk 0:08:22] } 40. Rxd7 { [%eval 4.41] [%clk 0:20:05] } 40... Rf7?? { [%eval #5] } { Checkmate is now unavoidable. Rxd7 was best. } { [%clk 0:08:46] } 41. Re7?? { [%eval 4.72] } { Lost forced checkmate sequence. Rdxf7+ was best. } { [%clk 0:20:05] } 41... Rxe7 { [%eval 4.7] [%clk 0:08:46] } 42. c4 { [%eval 4.61] [%clk 0:20:19] } 42... Rd7 { [%eval 4.92] [%clk 0:09:05] } 43. b3 { [%eval 4.76] [%clk 0:19:33] } 43... b5 { [%eval 6.01] [%clk 0:09:28] } 1-0