Event: Round 4: Ngo, Quang Thai - Riabtsev, Ivan
Date: 2025-06-08
White: Ngo, Quang Thai
WhiteTitle: FM
WhiteElo: 2326
Black: Riabtsev, Ivan
BlackElo: 2036
Result: 0-1
ECO: D43
Opening: Semi-Slav Defense: Anti-Moscow Gambit
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:57] } 1... d5 { [%eval 0.2] [%clk 1:30:49] } 2. c4 { [%eval 0.18] [%clk 1:31:21] } 2... c6 { [%eval 0.21] [%clk 1:31:14] } 3. Nf3 { [%eval 0.2] [%clk 1:31:33] } 3... Nf6 { [%eval 0.24] [%clk 1:31:42] } 4. Nc3 { [%eval 0.16] [%clk 1:31:53] } 4... e6 { [%eval 0.12] [%clk 1:32:11] } 5. Bg5 { [%eval 0.1] [%clk 1:32:09] } 5... h6 { [%eval 0.14] [%clk 1:32:25] } 6. Bh4 { [%eval 0.1] [%clk 1:32:25] } 6... g5 { [%eval 0.36] [%clk 1:32:28] } 7. Bg3 { [%eval 0.32] [%clk 1:32:47] } 7... dxc4 { [%eval 0.5] [%clk 1:32:56] } 8. e4 { [%eval 0.29] [%clk 1:32:11] } 8... b5 { [%eval 0.32] [%clk 1:33:13] } 9. Be2 { [%eval 0.31] [%clk 1:32:32] } 9... Bb4 { [%eval 0.58] [%clk 1:32:22] } 10. Qc2 { [%eval 0.7] [%clk 1:32:08] } 10... Bb7 { [%eval 0.62] [%clk 1:31:28] } 11. O-O { [%eval 0.66] [%clk 1:32:29] } 11... Nbd7 { [%eval 0.61] [%clk 1:29:58] } 12. Rad1 { [%eval 0.68] [%clk 1:31:03] } 12... a6 { [%eval 0.76] [%clk 1:21:46] } 13. Nd2 { [%eval 0.77] [%clk 1:29:22] } 13... Qb6 { [%eval 0.66] [%clk 1:10:38] } 14. e5 { [%eval 0.27] [%clk 1:14:14] } 14... Nd5 { [%eval 0.35] [%clk 1:09:25] } 15. Nde4 { [%eval 0.46] [%clk 1:14:37] } 15... O-O-O { [%eval 0.3] [%clk 1:06:59] } 16. a4?! { [%eval -0.37] } { Inaccuracy. Bh5 was best. } { [%clk 1:06:57] } 16... Kb8 { [%eval -0.4] [%clk 0:50:41] } 17. b3 { [%eval -0.6] [%clk 0:58:56] } 17... Qa5? { [%eval 1.03] } { Mistake. Nxc3 was best. } { [%clk 0:31:25] } 18. Na2?? { [%eval -0.95] } { Blunder. Nxd5 was best. } { [%clk 0:51:39] } 18... cxb3 { [%eval -0.96] [%clk 0:31:41] } 19. Qxb3 { [%eval -1.05] [%clk 0:52:06] } 19... Be7 { [%eval -1.01] [%clk 0:31:58] } 20. Rb1?! { [%eval -1.86] } { Inaccuracy. Nd6 was best. } { [%clk 0:49:16] } 20... N7b6 { [%eval -1.72] [%clk 0:22:16] } 21. Nc5?! { [%eval -2.36] } { Inaccuracy. Nd6 was best. } { [%clk 0:38:49] } 21... Bxc5 { [%eval -2.15] [%clk 0:14:07] } 22. dxc5 { [%eval -2.18] [%clk 0:39:12] } 22... Nxa4 { [%eval -2.16] [%clk 0:13:29] } 23. Rfc1 { [%eval -2.12] [%clk 0:39:16] } 23... Qd2 { [%eval -1.68] [%clk 0:09:55] } 24. Bf1 { [%eval -1.84] [%clk 0:22:19] } 24... Nf4 { [%eval -1.77] [%clk 0:08:24] } 25. Rc2 { [%eval -2.39] [%clk 0:13:31] } 25... Qd5 { [%eval -2.48] [%clk 0:08:22] } 26. Qa3 { [%eval -2.81] [%clk 0:08:33] } 26... Qxe5 { [%eval -2.43] [%clk 0:07:55] } 27. Nb4 { [%eval -2.41] [%clk 0:08:48] } 27... Ka8 { [%eval -2.36] [%clk 0:05:39] } 28. Qf3 { [%eval -2.39] [%clk 0:07:10] } 28... Qc7 { [%eval -1.91] [%clk 0:05:21] } 29. Ra2 { [%eval -1.66] [%clk 0:04:43] } 29... Rd4 { [%eval -1.76] [%clk 0:04:44] } 30. Qe3? { [%eval -3.28] } { Mistake. Rxa4 was best. } { [%clk 0:03:25] } 30... Rhd8 { [%eval -3.15] [%clk 0:04:48] } 31. f3 { [%eval -3.36] [%clk 0:03:17] } 31... e5 { [%eval -3.34] [%clk 0:04:29] } 32. Be1 { [%eval -3.62] [%clk 0:03:02] } 32... Nd5 { [%eval -3.46] [%clk 0:03:21] } 33. Nxd5 { [%eval -3.88] [%clk 0:01:28] } 33... R8xd5 { [%eval -3.83] [%clk 0:03:45] } 34. h4 { [%eval -3.97] [%clk 0:01:26] } 34... f6 { [%eval -3.72] [%clk 0:04:07] } 35. hxg5 { [%eval -4.14] [%clk 0:01:25] } 35... hxg5 { [%eval -3.92] [%clk 0:04:36] } 36. Bf2 { [%eval -4.24] [%clk 0:00:59] } 36... Rd1?! { [%eval -3.33] } { Inaccuracy. Nxc5 was best. } { [%clk 0:02:48] } 37. Rxd1 { [%eval -3.33] [%clk 0:01:00] } 37... Rxd1 { [%eval -3.35] [%clk 0:03:17] } 38. Qb3 { [%eval -3.76] [%clk 0:00:52] } 38... Rd5 { [%eval -3.35] [%clk 0:03:17] } 39. Qb4 { [%eval -3.66] [%clk 0:00:39] } 39... Qd8 { [%eval -3.39] [%clk 0:02:34] } 40. g4 { [%eval -4.15] [%clk 0:00:34] } 40... Qc7?! { [%eval -3.04] } { Inaccuracy. Rd1 was best. } { [%clk 0:01:14] } 41. Kg2 { [%eval -2.87] [%clk 0:12:38] } 41... Rd8 { [%eval -3.16] [%clk 0:09:59] } 42. Ra3 { [%eval -3.81] [%clk 0:08:43] } 42... Qh7 { [%eval -3.88] [%clk 0:07:02] } 43. Qa5 { [%eval -4.0] [%clk 0:06:28] } 43... Rh8 { [%eval -4.03] [%clk 0:06:49] } 44. Bg1 { [%eval -4.18] [%clk 0:05:57] } 44... Qc2+ { [%eval -3.9] [%clk 0:05:13] } 45. Kg3?! { [%eval -5.51] } { Inaccuracy. Bf2 was best. } { [%clk 0:05:11] } 45... Qc1 { [%eval -6.81] [%clk 0:00:50] } 46. Rd3 { [%eval -7.68] [%clk 0:02:43] } 46... Qxf1 { [%clk 0:03:34] } 47. Rd8+ { [%clk 0:03:09] } 47... Rxd8 { [%clk 0:04:03] } 48. Qxd8+ { [%clk 0:03:30] } 48... Ka7 { [%clk 0:04:32] } 0-1