Event: Las Vegas National Open 2023
Date: 2023-06-17
White: Viktor Matviishen
WhiteTitle: GM
Black: Zaven Andriasian
BlackTitle: GM
Result: 1-0
ECO: D11
Opening: Slav Defense: Quiet Variation, Pin Defense
Variant: Standard
TimeControl: G/90 +30 sec inc

1. d4 { [%eval 0.0] [%clk 1:24:45] } 1... d5 { [%eval 0.27] [%clk 1:30:52] } 2. c4 { [%eval 0.29] [%clk 1:25:12] } 2... c6 { [%eval 0.3] [%clk 1:31:16] } 3. Nf3 { [%eval 0.32] [%clk 1:25:25] } 3... Nf6 { [%eval 0.38] [%clk 1:31:38] } 4. e3 { [%eval 0.24] [%clk 1:25:51] } 4... Bg4 { [%eval 0.31] [%clk 1:31:44] } 5. h3 { [%eval 0.52] [%clk 1:25:49] } 5... Bxf3 { [%eval 0.46] [%clk 1:32:02] } 6. Qxf3 { [%eval 0.52] [%clk 1:26:15] } 6... e6 { [%eval 0.41] [%clk 1:32:22] } 7. Nc3 { [%eval 0.5] [%clk 1:26:39] } 7... Nbd7 { [%eval 0.45] [%clk 1:32:33] } 8. Bd3 { [%eval 0.45] [%clk 1:27:02] } 8... Bb4 { [%eval 0.48] [%clk 1:32:55] } 9. O-O { [%eval 0.32] [%clk 1:27:19] } 9... O-O { [%eval 0.32] [%clk 1:33:03] } 10. Rd1 { [%eval 0.45] [%clk 1:27:33] } 10... Re8 { [%eval 0.44] [%clk 1:32:59] } 11. Qe2 { [%eval 0.43] [%clk 1:27:38] } 11... Qe7 { [%eval 0.41] [%clk 1:26:54] } 12. Bd2 { [%eval 0.39] [%clk 1:27:57] } 12... Rad8 { [%eval 0.36] [%clk 1:24:21] } 13. a3 { [%eval 0.69] [%clk 1:27:48] } 13... Bd6 { [%eval 0.62] [%clk 1:17:35] } 14. c5 { [%eval 0.61] [%clk 1:24:24] } 14... Bc7 { [%eval 0.59] [%clk 1:17:50] } 15. f4 { [%eval 0.67] [%clk 1:24:49] } 15... b6 { [%eval 0.64] [%clk 1:12:14] } 16. b4 { [%eval 0.19] [%clk 1:22:02] } 16... bxc5 { [%eval 0.32] [%clk 1:08:57] } 17. bxc5 { [%eval 0.1] [%clk 1:22:24] } 17... h6?! { [%eval 1.01] } { Inaccuracy. e5 was best. } { [%clk 1:08:59] } 18. Rab1 { [%eval 0.93] [%clk 1:21:29] } 18... Rb8?! { [%eval 1.55] } { Inaccuracy. e5 was best. } { [%clk 1:05:31] } 19. Bc2 { [%eval 1.6] [%clk 1:20:05] } 19... Ba5 { [%eval 2.19] [%clk 0:45:18] } 20. Qa6 { [%eval 2.32] [%clk 1:13:25] } 20... Bxc3 { [%eval 2.09] [%clk 0:45:35] } 21. Bxc3 { [%eval 2.47] [%clk 1:13:54] } 21... Ne4 { [%eval 2.28] [%clk 0:45:51] } 22. Be1 { [%eval 2.26] [%clk 1:12:06] } 22... Ndf6 { [%eval 2.36] [%clk 0:39:38] } 23. Qxc6 { [%eval 2.18] [%clk 1:11:00] } 23... Rbc8 { [%eval 2.51] [%clk 0:40:02] } 24. Qa6 { [%eval 2.5] [%clk 1:08:46] } 24... g5 { [%eval 2.77] [%clk 0:39:40] } 25. Rb7 { [%eval 2.55] [%clk 1:05:43] } 25... Rc7 { [%eval 2.94] [%clk 0:34:01] } 26. Rdb1 { [%eval 3.16] [%clk 0:58:21] } 26... gxf4 { [%eval 3.52] [%clk 0:33:33] } 27. Qxa7 { [%eval 3.5] [%clk 0:42:17] } 27... Rxb7 { [%eval 3.4] [%clk 0:33:12] } 28. Rxb7 { [%eval 3.56] [%clk 0:42:46] } 28... Qf8 { [%eval 3.77] [%clk 0:33:30] } 29. exf4 { [%eval 3.74] [%clk 0:42:30] } 29... Nh5 { [%eval 3.86] [%clk 0:28:09] } 30. Kh2 { [%eval 3.89] [%clk 0:34:02] } 30... Nxf4 { [%eval 3.68] [%clk 0:26:25] } 31. Bxe4 { [%eval 3.84] [%clk 0:34:13] } 31... dxe4 { [%eval 3.56] [%clk 0:26:41] } 32. Bg3 { [%eval 3.86] [%clk 0:34:07] } 32... Ra8 { [%eval 4.05] [%clk 0:24:41] } 33. Qb6 { [%eval 4.14] [%clk 0:33:26] } 33... Nd5 { [%eval 3.8] [%clk 0:24:56] } 34. Qb1 { [%eval 4.16] [%clk 0:32:44] } 34... Qc8 { [%eval 4.18] [%clk 0:22:56] } 35. Be5 { [%eval 3.84] [%clk 0:31:02] } 35... e3 { [%eval 4.58] [%clk 0:18:57] } 36. c6 { [%eval 4.38] [%clk 0:31:05] } 36... Qe8?! { [%eval 5.94] } { Inaccuracy. Qxc6 was best. } { [%clk 0:08:47] } 37. Qe4 { [%eval 6.11] [%clk 0:24:25] } 37... Ne7 { [%eval 6.06] [%clk 0:08:13] } 38. Qxe3 { [%eval 6.03] [%clk 0:24:36] } 38... Ng6 { [%eval 6.7] [%clk 0:08:36] } 39. Qxh6 { [%eval 6.83] [%clk 0:24:17] } 39... Nxe5 { [%eval 7.72] [%clk 0:08:57] } 40. dxe5 { [%eval 7.9] [%clk 0:24:44] } 1-0