Event: Round 7: Nathan Birnboim - Anthony C. Kosten
Date: 2023-09-26
White: Nathan Birnboim
WhiteTitle: IM
WhiteElo: 2346
Black: Anthony C. Kosten
BlackTitle: GM
BlackElo: 2352
Result: 0-1
ECO: E32
Opening: Nimzo-Indian Defense: Classical Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:51] } 1... Nf6 { [%eval 0.28] [%clk 1:30:52] } 2. c4 { [%eval 0.16] [%clk 1:31:14] } 2... e6 { [%eval 0.23] [%clk 1:31:14] } 3. Nc3 { [%eval 0.05] [%clk 1:31:37] } 3... Bb4 { [%eval 0.25] [%clk 1:31:35] } 4. Qc2 { [%eval 0.0] [%clk 1:31:54] } 4... b6?! { [%eval 0.64] } { Inaccuracy. O-O was best. } { [%clk 1:27:26] } 5. e4 { [%eval 0.68] [%clk 1:30:37] } 5... c5 { [%eval 0.54] [%clk 1:27:42] } 6. a3 { [%eval 0.35] [%clk 1:18:04] } 6... Bxc3+ { [%eval 0.58] [%clk 1:21:13] } 7. bxc3 { [%eval 0.41] [%clk 1:18:20] } 7... d6 { [%eval 0.12] [%clk 1:20:05] } 8. Bd3 { [%eval 0.25] [%clk 1:11:14] } 8... Nc6 { [%eval 0.28] [%clk 1:16:15] } 9. Nf3 { [%eval -0.11] [%clk 1:09:55] } 9... e5 { [%eval -0.2] [%clk 1:09:58] } 10. d5 { [%eval -0.22] [%clk 1:09:48] } 10... Ne7 { [%eval 0.32] [%clk 1:08:13] } 11. Nh4 { [%eval 0.31] [%clk 1:05:33] } 11... h6 { [%eval 0.39] [%clk 1:05:32] } 12. g3 { [%eval 0.37] [%clk 1:04:03] } 12... g5 { [%eval 0.28] [%clk 1:05:32] } 13. Ng2 { [%eval 0.32] [%clk 1:04:03] } 13... Bh3 { [%eval 0.37] [%clk 1:05:32] } 14. f3 { [%eval 0.28] [%clk 1:04:03] } 14... Qc7 { [%eval 0.26] [%clk 1:05:32] } 15. Bf1 { [%eval -0.01] [%clk 1:04:03] } 15... Nh5 { [%eval 0.26] [%clk 1:05:32] } 16. Ne3 { [%eval 0.33] [%clk 1:04:03] } 16... Bd7 { [%eval 0.28] [%clk 1:05:32] } 17. Be2 { [%eval 0.14] [%clk 1:04:03] } 17... O-O-O { [%eval 0.17] [%clk 1:05:32] } 18. Nf5?! { [%eval -0.71] } { Inaccuracy. Bd2 was best. } { [%clk 1:04:03] } 18... Nxf5 { [%eval -0.76] [%clk 1:05:32] } 19. exf5 { [%eval -0.74] [%clk 1:04:03] } 19... Rde8 { [%eval -0.73] [%clk 0:21:43] } 20. Kf2 { [%eval -0.81] [%clk 0:27:13] } 20... Nf6 { [%eval -0.78] [%clk 0:20:06] } 21. h4 { [%eval -0.64] [%clk 0:25:35] } 21... e4 { [%eval -0.72] [%clk 0:18:07] } 22. g4? { [%eval -1.91] } { Mistake. hxg5 was best. } { [%clk 0:17:35] } 22... gxh4 { [%eval -1.99] [%clk 0:17:23] } 23. Rxh4?! { [%eval -2.9] } { Inaccuracy. Bf4 was best. } { [%clk 0:17:16] } 23... Qd8 { [%eval -3.07] [%clk 0:17:24] } 24. Rh1 { [%eval -3.7] [%clk 0:16:41] } 24... h5? { [%eval -2.02] } { Mistake. exf3 was best. } { [%clk 0:17:10] } 25. g5 { [%eval -2.03] [%clk 0:12:33] } 25... Bxf5 { [%eval -1.5] [%clk 0:16:55] } 26. Qa4? { [%eval -3.29] } { Mistake. Be3 was best. } { [%clk 0:12:44] } 26... exf3 { [%eval -3.46] [%clk 0:16:15] } 27. Bxf3 { [%eval -3.14] [%clk 0:12:20] } 27... Ne4+?! { [%eval -1.92] } { Inaccuracy. Kb8 was best. } { [%clk 0:15:09] } 28. Bxe4 { [%eval -2.11] [%clk 0:11:41] } 28... Bxe4 { [%eval -1.88] [%clk 0:15:11] } 29. Qxa7 { [%eval -2.44] [%clk 0:11:31] } 29... Bxh1 { [%eval -2.56] [%clk 0:11:19] } 30. Qa8+ { [%eval -2.58] [%clk 0:08:19] } 30... Kd7 { [%eval -2.53] [%clk 0:11:06] } 31. Qc6+ { [%eval -2.62] [%clk 0:04:50] } 31... Ke7 { [%eval -2.47] [%clk 0:11:30] } 32. Bf4 { [%eval -0.9] [%clk 0:04:39] } 32... Be4?! { [%eval -0.05] } { Inaccuracy. Bxd5 was best. } { [%clk 0:11:25] } 33. Re1?? { [%eval -3.61] } { Blunder. Be5 was best. } { [%clk 0:03:21] } 33... Kf8 { [%eval -4.57] [%clk 0:11:12] } 34. Bxd6+ { [%eval -4.19] [%clk 0:03:43] } 34... Kg8 { [%eval -5.04] [%clk 0:10:58] } 35. Bc7 { [%eval -5.17] [%clk 0:02:36] } 35... Qc8 { [%eval -5.0] [%clk 0:11:01] } 0-1