Event: \Boyi Cup\China Youth Chess International Open Tournament 2025(Group A)
Site: Daqing, China
Date: 2025-07-30
White: Stefansson, Vignir Vatnar
WhiteTitle: GM
WhiteElo: 2509
Black: Sun, Yidi
BlackElo: 2107
Result: 1-0
ECO: E04
Opening: Catalan Opening: Open Defense
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:27:07] } 1... Nf6 { [%eval 0.19] [%clk 1:30:51] } 2. c4 { [%eval 0.18] [%clk 1:26:45] } 2... e6 { [%eval 0.14] [%clk 1:31:15] } 3. g3 { [%eval 0.13] [%clk 1:25:00] } 3... d5 { [%eval 0.12] [%clk 1:31:38] } 4. Bg2 { [%eval 0.14] [%clk 1:25:21] } 4... dxc4 { [%eval 0.16] [%clk 1:31:51] } 5. Nf3 { [%eval 0.22] [%clk 1:25:27] } 5... Bb4+ { [%eval 0.18] [%clk 1:32:15] } 6. Nbd2 { [%eval -0.04] [%clk 1:25:09] } 6... b5 { [%eval -0.03] [%clk 1:21:40] } 7. O-O { [%eval -0.09] [%clk 1:11:28] } 7... Bb7 { [%eval 0.12] [%clk 1:21:58] } 8. a4 { [%eval 0.1] [%clk 0:52:37] } 8... c3 { [%eval 0.13] [%clk 1:13:27] } 9. Nb1 { [%eval 0.14] [%clk 0:48:14] } 9... cxb2 { [%eval 0.12] [%clk 1:11:36] } 10. Bxb2 { [%eval 0.1] [%clk 0:48:41] } 10... a6 { [%eval 0.08] [%clk 1:10:27] } 11. Na3 { [%eval -0.02] [%clk 0:41:45] } 11... c6 { [%eval 0.4] [%clk 1:05:56] } 12. Ne5 { [%eval 0.31] [%clk 0:36:39] } 12... Nd5?! { [%eval 1.36] } { Inaccuracy. O-O was best. } { [%clk 1:04:22] } 13. e4 { [%eval 1.18] [%clk 0:35:03] } 13... Nb6 { [%eval 1.38] [%clk 0:41:59] } 14. axb5 { [%eval 1.35] [%clk 0:29:05] } 14... axb5 { [%eval 1.63] [%clk 0:39:59] } 15. Qg4 { [%eval 1.44] [%clk 0:28:41] } 15... Na4?! { [%eval 2.32] } { Inaccuracy. O-O was best. } { [%clk 0:27:27] } 16. Qxg7 { [%eval 2.44] [%clk 0:27:09] } 16... Rf8 { [%eval 2.25] [%clk 0:27:01] } 17. Nd3 { [%eval 2.33] [%clk 0:26:35] } 17... Be7 { [%eval 2.45] [%clk 0:23:18] } 18. d5 { [%eval 2.44] [%clk 0:26:07] } 18... cxd5 { [%eval 2.7] [%clk 0:20:36] } 19. Be5 { [%eval 2.89] [%clk 0:22:59] } 19... Nd7?! { [%eval 4.04] } { Inaccuracy. Bxa3 was best. } { [%clk 0:16:47] } 20. Nxb5 { [%eval 3.81] [%clk 0:22:12] } 20... Nxe5 { [%eval 3.93] [%clk 0:17:13] } 21. Qxe5 { [%eval 3.82] [%clk 0:22:32] } 21... Bf6 { [%eval 4.07] [%clk 0:17:18] } 22. Qc7 { [%eval 3.79] [%clk 0:19:11] } 22... Qd7 { [%eval 4.16] [%clk 0:07:27] } 23. Nd6+?? { [%eval 1.92] } { Blunder. e5 was best. } { [%clk 0:10:39] } 23... Ke7 { [%eval 2.09] [%clk 0:07:53] } 24. Qxd7+ { [%eval 1.95] [%clk 0:11:03] } 24... Kxd7 { [%eval 1.87] [%clk 0:08:19] } 25. Nxb7 { [%eval 1.91] [%clk 0:11:13] } 25... Bxa1 { [%eval 1.95] [%clk 0:08:14] } 26. Rxa1 { [%eval 1.92] [%clk 0:11:29] } 26... Nc3 { [%eval 1.97] [%clk 0:07:00] } 27. Re1 { [%eval 2.07] [%clk 0:10:54] } 27... Ra3?! { [%eval 3.39] } { Inaccuracy. Nxe4 was best. } { [%clk 0:03:45] } 28. exd5 { [%eval 3.38] [%clk 0:11:05] } 28... exd5 { [%eval 3.53] [%clk 0:04:10] } 29. Bh3+ { [%eval 3.54] [%clk 0:10:06] } 29... Kc6 { [%eval 3.49] [%clk 0:04:22] } 30. Nbc5 { [%eval 3.33] [%clk 0:10:33] } 30... Kd6 { [%eval 3.61] [%clk 0:01:36] } 31. Bf5 { [%eval 3.26] [%clk 0:08:51] } 31... Nb5?! { [%eval 4.1] } { Inaccuracy. Rb8 was best. } { [%clk 0:01:01] } 32. Rb1 { [%eval 4.04] [%clk 0:04:53] } 32... Nd4 { [%eval 4.13] [%clk 0:01:03] } 33. Rb6+ { [%eval 4.05] [%clk 0:05:14] } 33... Kc7 { [%eval 4.25] [%clk 0:01:19] } 34. Rb7+ { [%eval 4.07] [%clk 0:05:40] } 34... Kc6 { [%eval 4.24] [%clk 0:01:43] } 35. Bd7+ { [%eval 4.15] [%clk 0:05:58] } 35... Kd6 { [%eval 4.21] [%clk 0:02:10] } 36. Ba4 { [%eval 4.31] [%clk 0:06:01] } 36... Rd8?! { [%eval 5.68] } { Inaccuracy. Nf3+ was best. } { [%clk 0:00:32] } 37. Rxf7 { [%eval 5.54] [%clk 0:06:17] } 37... Rxd3 { [%eval 5.48] [%clk 0:00:32] } 38. Nxd3 { [%eval 5.5] [%clk 0:06:34] } 38... Ra8 { [%eval 5.7] [%clk 0:01:00] } 39. Rd7+ { [%eval 5.65] [%clk 0:06:37] } 39... Ke6 { [%eval 5.6] [%clk 0:01:25] } 40. Nc5+ { [%eval 5.61] [%clk 0:07:02] } 40... Ke5 { [%eval 5.75] [%clk 0:01:32] } 41. f4+ { [%eval 5.66] [%clk 0:07:25] } 41... Kf6 { [%eval 5.73] [%clk 0:02:00] } 42. Rxd5 { [%eval 5.64] [%clk 0:07:48] } 42... Ne2+ { [%eval 5.98] [%clk 0:02:19] } 43. Kf2 { [%eval 5.76] [%clk 0:08:13] } 43... Nc3 { [%eval 5.65] [%clk 0:02:46] } 44. Rd4 { [%eval 5.43] [%clk 0:08:38] } 44... Ra5 { [%eval 6.21] [%clk 0:03:04] } 45. Ne4+ { [%eval 6.01] [%clk 0:09:02] } 1-0