Event: Round 9: Samuelson, Andrew - Vaibhav Kalpaka
Date: 2025-07-06
White: Samuelson, Andrew
WhiteTitle: FM
WhiteElo: 2100
Black: Vaibhav Kalpaka
BlackTitle: FM
BlackElo: 2265
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Lipnitsky Attack
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:20] } 1... c5 { [%eval 0.25] [%clk 1:30:58] } 2. Nf3 { [%eval 0.2] [%clk 1:30:42] } 2... d6 { [%eval 0.31] [%clk 1:31:26] } 3. d4 { [%eval 0.22] [%clk 1:31:07] } 3... cxd4 { [%eval 0.19] [%clk 1:31:52] } 4. Nxd4 { [%eval 0.18] [%clk 1:31:33] } 4... Nf6 { [%eval 0.31] [%clk 1:32:17] } 5. Nc3 { [%eval 0.32] [%clk 1:31:59] } 5... a6 { [%eval 0.28] [%clk 1:32:43] } 6. Bc4 { [%eval 0.03] [%clk 1:31:41] } 6... e6 { [%eval 0.06] [%clk 1:32:52] } 7. Bb3 { [%eval 0.0] [%clk 1:32:08] } 7... Bd7?! { [%eval 0.65] } { Inaccuracy. b5 was best. } { [%clk 1:32:35] } 8. O-O { [%eval 0.16] [%clk 1:32:17] } 8... Nc6 { [%eval 0.17] [%clk 1:32:36] } 9. Be3 { [%eval 0.19] [%clk 1:32:27] } 9... Na5 { [%eval 0.46] [%clk 1:25:28] } 10. f4 { [%eval 0.43] [%clk 1:32:22] } 10... Nxb3 { [%eval 0.44] [%clk 1:25:37] } 11. axb3 { [%eval 0.45] [%clk 1:31:56] } 11... Qc7 { [%eval 0.52] [%clk 1:25:27] } 12. Qf3 { [%eval 0.6] [%clk 1:31:52] } 12... Be7 { [%eval 0.51] [%clk 1:24:20] } 13. Kh1 { [%eval -0.02] [%clk 1:31:25] } 13... h5?! { [%eval 0.66] } { Inaccuracy. O-O was best. } { [%clk 1:21:58] } 14. Bg1 { [%eval 0.34] [%clk 1:27:57] } 14... O-O { [%eval 0.31] [%clk 0:49:25] } 15. Rae1 { [%eval 0.0] [%clk 1:27:24] } 15... e5 { [%eval 0.1] [%clk 0:50:21] } 16. fxe5 { [%eval 0.0] [%clk 1:27:20] } 16... dxe5 { [%eval 0.0] [%clk 0:50:48] } 17. Nf5 { [%eval 0.08] [%clk 1:27:22] } 17... Bxf5 { [%eval 0.03] [%clk 0:49:57] } 18. Qxf5 { [%eval 0.17] [%clk 1:27:40] } 18... g6 { [%eval 0.24] [%clk 0:43:53] } 19. Qh3 { [%eval 0.22] [%clk 1:27:09] } 19... b5 { [%eval 0.24] [%clk 0:43:04] } 20. Re2 { [%eval -0.08] [%clk 1:26:52] } 20... b4 { [%eval 0.0] [%clk 0:42:53] } 21. Nd5 { [%eval 0.0] [%clk 1:26:31] } 21... Nxd5 { [%eval 0.0] [%clk 0:43:17] } 22. exd5 { [%eval 0.0] [%clk 1:26:57] } 22... Rad8 { [%eval 0.38] [%clk 0:36:00] } 23. Qd3 { [%eval 0.35] [%clk 1:27:07] } 23... Qd6?! { [%eval 1.07] } { Inaccuracy. Rc8 was best. } { [%clk 0:35:48] } 24. Rd1 { [%eval 0.83] [%clk 1:26:56] } 24... f5 { [%eval 1.39] [%clk 0:34:25] } 25. c4 { [%eval 1.37] [%clk 1:27:06] } 25... bxc3 { [%eval 1.48] [%clk 0:34:04] } 26. bxc3 { [%eval 1.51] [%clk 1:27:30] } 26... e4 { [%eval 1.35] [%clk 0:33:11] } 27. Qe3 { [%eval 1.5] [%clk 1:27:28] } 27... Qe5 { [%eval 1.52] [%clk 0:17:59] } 28. c4 { [%eval 1.6] [%clk 1:27:33] } 28... Kh7 { [%eval 1.58] [%clk 0:14:46] } 29. Qd4 { [%eval 1.21] [%clk 1:24:10] } 29... Qb8? { [%eval 2.69] } { Mistake. Qxd4 was best. } { [%clk 0:09:28] } 30. Qb6?! { [%eval 1.59] } { Inaccuracy. c5 was best. } { [%clk 1:23:21] } 30... Qe5?! { [%eval 2.26] } { Inaccuracy. a5 was best. } { [%clk 0:07:25] } 31. Qd4?! { [%eval 1.16] } { Inaccuracy. Bd4 was best. } { [%clk 1:18:29] } 31... Qf4?? { [%eval 3.22] } { Blunder. Qxd4 was best. } { [%clk 0:07:07] } 32. c5 { [%eval 2.99] [%clk 1:17:59] } 32... Qg4?! { [%eval 3.91] } { Inaccuracy. Bf6 was best. } { [%clk 0:07:04] } 33. Qc4 { [%eval 3.62] [%clk 1:16:44] } 33... Bf6 { [%eval 3.81] [%clk 0:05:33] } 34. h3 { [%eval 3.6] [%clk 1:13:27] } 34... Qg5 { [%eval 4.02] [%clk 0:04:27] } 35. d6 { [%eval 3.87] [%clk 1:13:08] } 35... Be5 { [%eval 3.79] [%clk 0:03:59] } 36. d7 { [%eval 3.82] [%clk 1:12:55] } 36... Qg3 { [%eval 3.83] [%clk 0:03:18] } 37. Qe6 { [%eval 3.7] [%clk 1:11:16] } 37... g5? { [%eval 7.57] } { Mistake. Bf4 was best. } { [%clk 0:01:23] } 38. Re3 { [%eval 7.33] [%clk 1:11:19] } 38... Qf4 { [%eval 7.74] [%clk 0:00:33] } 39. g3 { [%eval 7.43] [%clk 1:11:37] } 1-0