Event: Round 11: Karsten, Jan - Klaasen, Calvin John
Date: 2024-04-02
White: Karsten, Jan
WhiteTitle: IM
WhiteElo: 2307
Black: Klaasen, Calvin John
BlackTitle: FM
BlackElo: 2155
Result: 1-0
ECO: C92
Opening: Ruy Lopez: Closed, Flohr System
Variant: Standard

1. e4 { [%eval 0.14] [%clk 1:30:55] } 1... e5 { [%eval 0.2] [%clk 1:30:56] } 2. Nf3 { [%eval 0.21] [%clk 1:31:21] } 2... Nc6 { [%eval 0.13] [%clk 1:31:21] } 3. Bb5 { [%eval 0.21] [%clk 1:31:18] } 3... a6 { [%eval 0.21] [%clk 1:31:40] } 4. Ba4 { [%eval 0.31] [%clk 1:31:38] } 4... Nf6 { [%eval 0.14] [%clk 1:32:04] } 5. O-O { [%eval 0.24] [%clk 1:32:04] } 5... Be7 { [%eval 0.19] [%clk 1:32:19] } 6. Re1 { [%eval 0.46] [%clk 1:32:16] } 6... b5 { [%eval 0.33] [%clk 1:32:43] } 7. Bb3 { [%eval 0.16] [%clk 1:32:43] } 7... d6 { [%eval 0.28] [%clk 1:33:00] } 8. c3 { [%eval 0.46] [%clk 1:33:08] } 8... O-O { [%eval 0.38] [%clk 1:33:18] } 9. h3 { [%eval 0.42] [%clk 1:33:35] } 9... Bb7 { [%eval 0.43] [%clk 1:33:22] } 10. d4 { [%eval 0.47] [%clk 1:32:27] } 10... Re8 { [%eval 0.48] [%clk 1:33:02] } 11. Ng5 { [%eval 0.49] [%clk 1:31:22] } 11... Rf8 { [%eval 0.42] [%clk 1:33:31] } 12. Nf3 { [%eval 0.42] [%clk 1:31:45] } 12... Re8 { [%eval 0.39] [%clk 1:33:58] } 13. Nbd2 { [%eval 0.36] [%clk 1:31:03] } 13... Bf8 { [%eval 0.37] [%clk 1:33:48] } 14. Bc2 { [%eval 0.26] [%clk 1:30:46] } 14... h6 { [%eval 0.39] [%clk 1:29:04] } 15. a4 { [%eval 0.42] [%clk 1:27:41] } 15... exd4 { [%eval 0.62] [%clk 1:11:31] } 16. cxd4 { [%eval 0.65] [%clk 1:27:47] } 16... Nb4 { [%eval 0.53] [%clk 1:11:57] } 17. Bb1 { [%eval 0.42] [%clk 1:28:06] } 17... c5 { [%eval 0.43] [%clk 1:12:16] } 18. d5 { [%eval 0.55] [%clk 1:27:49] } 18... Nd7 { [%eval 0.48] [%clk 1:12:41] } 19. Ra3 { [%eval 0.35] [%clk 1:24:30] } 19... c4 { [%eval 0.43] [%clk 1:10:34] } 20. Nd4 { [%eval 0.47] [%clk 1:07:04] } 20... Qf6 { [%eval 0.51] [%clk 1:10:57] } 21. N2f3 { [%eval 0.34] [%clk 0:51:58] } 21... Nc5 { [%eval 0.51] [%clk 0:59:01] } 22. axb5 { [%eval 0.1] [%clk 0:43:10] } 22... axb5 { [%eval 0.04] [%clk 0:52:27] } 23. Nxb5 { [%eval 0.05] [%clk 0:38:50] } 23... Rxa3 { [%eval 0.08] [%clk 0:46:16] } 24. Nxa3 { [%eval -0.03] [%clk 0:38:20] } 24... Nbd3 { [%eval 0.26] [%clk 0:46:30] } 25. Bxd3 { [%eval 0.36] [%clk 0:30:24] } 25... Nxd3 { [%eval 0.55] [%clk 0:46:49] } 26. Re3 { [%eval 0.5] [%clk 0:26:12] } 26... Nxb2?! { [%eval 1.19] } { Inaccuracy. Ba6 was best. } { [%clk 0:18:45] } 27. Bxb2 { [%eval 1.17] [%clk 0:20:38] } 27... Qxb2 { [%eval 1.19] [%clk 0:19:09] } 28. Nxc4 { [%eval 1.13] [%clk 0:20:59] } 28... Qa2?! { [%eval 1.82] } { Inaccuracy. Qb4 was best. } { [%clk 0:19:29] } 29. Nfd2 { [%eval 1.96] [%clk 0:18:30] } 29... Qa7 { [%eval 2.36] [%clk 0:12:28] } 30. Ra3 { [%eval 2.4] [%clk 0:14:20] } 30... Qc5 { [%eval 2.31] [%clk 0:10:26] } 31. Qb1 { [%eval 2.42] [%clk 0:11:44] } 31... Rb8?! { [%eval 3.3] } { Inaccuracy. Re7 was best. } { [%clk 0:01:12] } 32. Rb3 { [%eval 3.25] [%clk 0:09:45] } 32... Qc7 { [%eval 3.1] [%clk 0:01:00] } 33. Rb5 { [%eval 3.07] [%clk 0:06:03] } 33... Ba6? { [%eval 5.09] } { Mistake. g6 was best. } { [%clk 0:00:34] } 34. Rxb8 { [%eval 5.19] [%clk 0:06:25] } 34... Bxc4 { [%eval 5.2] [%clk 0:00:59] } 35. Rxf8+ { [%eval 5.14] [%clk 0:06:03] } 35... Kxf8 { [%eval 5.16] [%clk 0:01:17] } 36. Qc1 { [%eval 5.15] [%clk 0:06:26] } 1-0