Event: Round 1: Jonathan Chen - Lev Koganov
Site: https://lichess.org/study/hmPmxLJD/ZRuuYJvE
Date: 2022-04-29
White: Jonathan Chen
Black: Lev Koganov
Result: 1-0
ECO: D35
Opening: Queen's Gambit Declined: Exchange Variation, Positional Variation
Variant: Standard

1. d4 { [%eval 0.21] [%clk 1:59:52] } 1... d5 { [%eval 0.35] [%clk 1:59:45] } 2. c4 { [%eval 0.36] [%clk 1:59:27] } 2... e6 { [%eval 0.3] [%clk 1:59:41] } 3. Nc3 { [%eval 0.39] [%clk 1:58:47] } 3... Nf6 { [%eval 0.41] [%clk 1:59:30] } 4. cxd5 { [%eval 0.16] [%clk 1:57:47] } 4... exd5 { [%eval 0.37] [%clk 1:59:10] } 5. Bg5 { [%eval 0.35] [%clk 1:56:04] } 5... Be7 { [%eval 0.28] [%clk 1:58:25] } 6. Qc2 { [%eval 0.13] [%clk 1:55:57] } 6... Nbd7 { [%eval 0.48] [%clk 1:55:47] } 7. e3 { [%eval 0.29] [%clk 1:55:43] } 7... O-O { [%eval 0.45] [%clk 1:55:36] } 8. Bd3 { [%eval 0.32] [%clk 1:55:26] } 8... b6 { [%eval 0.64] [%clk 1:53:41] } 9. Nge2 { [%eval 0.41] [%clk 1:53:29] } 9... Bb7 { [%eval 0.59] [%clk 1:52:41] } 10. f3?! { [%eval 0.06] } { Inaccuracy. O-O was best. } { [%clk 1:41:11] } 10... c5 { [%eval 0.08] [%clk 1:47:23] } 11. Bh4?! { [%eval -0.45] } { Inaccuracy. Rd1 was best. } { [%clk 1:30:33] } 11... g6 { [%eval -0.48] [%clk 1:37:39] } 12. Qd2 { [%eval -0.32] [%clk 1:23:44] } 12... Rc8 { [%eval 0.0] [%clk 1:33:01] } 13. Bf2 { [%eval -0.46] [%clk 1:20:56] } 13... Nb8 { [%eval 0.01] [%clk 1:26:53] } 14. h4 { [%eval 0.05] [%clk 1:06:16] } 14... Nc6 { [%eval 0.0] [%clk 1:11:14] } 15. g4 { [%eval 0.08] [%clk 1:01:27] } 15... Kg7? { [%eval 1.18] } { Mistake. Nb4 was best. } { [%clk 1:03:33] } 16. h5 { [%eval 0.98] [%clk 0:58:55] } 16... g5? { [%eval 2.42] } { Mistake. Kg8 was best. } { [%clk 0:40:08] } 17. Ng3 { [%eval 2.01] [%clk 0:50:55] } 17... Ng8?! { [%eval 2.65] } { Inaccuracy. Kh8 was best. } { [%clk 0:38:13] } 18. Bb1?! { [%eval 1.81] } { Inaccuracy. O-O-O was best. } { [%clk 0:44:08] } 18... Nb4?? { [%eval 5.68] } { Blunder. Kh8 was best. } { [%clk 0:25:54] } 19. a3 { [%eval 4.64] [%clk 0:42:47] } 19... Na6?! { [%eval 7.01] } { Inaccuracy. Nc6 was best. } { [%clk 0:25:49] } 20. Qd3 { [%eval 6.82] [%clk 0:42:16] } 20... Nf6 { [%eval 6.65] [%clk 0:25:35] } 21. h6+ { [%eval 7.24] [%clk 0:41:59] } 21... Kh8 { [%eval 6.77] [%clk 0:25:20] } 22. Nh5 { [%eval 6.76] [%clk 0:41:57] } 22... c4 { [%eval 9.05] [%clk 0:24:40] } 23. Qc2 { [%eval 9.32] [%clk 0:41:48] } 1-0