Event: Round 1: Grossmann, Piet - Koepke, Christian
Date: 2025-05-17
White: Grossmann, Piet
WhiteElo: 2063
Black: Koepke, Christian
BlackTitle: IM
BlackElo: 2328
Result: 1/2-1/2
ECO: B57
Opening: Sicilian Defense: Classical Variation, Sozin Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:42] } 2. Nf3 { [%eval 0.2] [%clk 1:31:00] } 2... d6 { [%eval 0.31] [%clk 1:31:02] } 3. d4 { [%eval 0.22] [%clk 1:31:24] } 3... cxd4 { [%eval 0.19] [%clk 1:31:24] } 4. Nxd4 { [%eval 0.18] [%clk 1:31:49] } 4... Nf6 { [%eval 0.31] [%clk 1:31:45] } 5. Nc3 { [%eval 0.32] [%clk 1:32:13] } 5... Nc6 { [%eval 0.3] [%clk 1:32:05] } 6. Bc4 { [%eval 0.26] [%clk 1:32:13] } 6... Bd7 { [%eval 0.3] [%clk 1:30:55] } 7. Be3 { [%eval 0.25] [%clk 1:26:35] } 7... e6 { [%eval 0.24] [%clk 1:30:45] } 8. f3 { [%eval 0.3] [%clk 1:23:22] } 8... a6 { [%eval 0.32] [%clk 1:20:24] } 9. Qe2 { [%eval -0.18] [%clk 1:20:46] } 9... b5 { [%eval -0.13] [%clk 1:18:46] } 10. Bb3 { [%eval -0.17] [%clk 1:20:19] } 10... Na5?! { [%eval 0.38] } { Inaccuracy. Be7 was best. } { [%clk 1:12:02] } 11. g4 { [%eval 0.17] [%clk 1:09:53] } 11... Be7 { [%eval 0.38] [%clk 1:03:02] } 12. g5?! { [%eval -0.31] } { Inaccuracy. O-O-O was best. } { [%clk 1:02:45] } 12... Nh5 { [%eval -0.16] [%clk 1:03:06] } 13. f4 { [%eval -0.29] [%clk 1:02:56] } 13... g6 { [%eval -0.22] [%clk 1:01:29] } 14. O-O-O { [%eval -0.27] [%clk 0:53:56] } 14... b4 { [%eval -0.24] [%clk 0:54:29] } 15. Na4 { [%eval -0.09] [%clk 0:52:57] } 15... O-O { [%eval -0.08] [%clk 0:53:54] } 16. Kb1 { [%eval -0.03] [%clk 0:52:24] } 16... Nxb3 { [%eval -0.11] [%clk 0:45:32] } 17. axb3 { [%eval -0.05] [%clk 0:52:12] } 17... Qc7 { [%eval -0.13] [%clk 0:40:37] } 18. Qd2?! { [%eval -0.8] } { Inaccuracy. f5 was best. } { [%clk 0:31:31] } 18... Qb7 { [%eval -0.78] [%clk 0:35:43] } 19. Ne2?! { [%eval -1.52] } { Inaccuracy. Rhe1 was best. } { [%clk 0:26:41] } 19... Bxa4?! { [%eval -0.57] } { Inaccuracy. Bc6 was best. } { [%clk 0:24:47] } 20. bxa4 { [%eval -0.43] [%clk 0:26:48] } 20... Qxe4 { [%eval -0.55] [%clk 0:24:16] } 21. b3 { [%eval -0.55] [%clk 0:25:35] } 21... Rfc8 { [%eval -0.07] [%clk 0:22:44] } 22. Ng3 { [%eval -0.01] [%clk 0:15:03] } 22... Nxg3 { [%eval 0.0] [%clk 0:03:19] } 23. hxg3 { [%eval 0.0] [%clk 0:15:28] } 23... e5 { [%eval -0.03] [%clk 0:03:29] } 24. Rhe1 { [%eval 0.0] [%clk 0:02:46] } 24... Rc3 { [%eval 0.0] [%clk 0:02:47] } 25. Bd4 { [%eval 0.0] [%clk 0:01:35] } 25... Qxd4 { [%eval 0.0] [%clk 0:02:28] } 26. Qxd4 { [%eval 0.0] [%clk 0:02:00] } 26... exd4 { [%eval 0.0] [%clk 0:02:53] } 27. Rxe7 { [%eval 0.0] [%clk 0:02:26] } 27... Rac8 { [%eval 0.0] [%clk 0:01:42] } 28. Rxd4 { [%eval 0.0] [%clk 0:02:29] } 28... Rxg3?! { [%eval 0.63] } { Inaccuracy. a5 was best. } { [%clk 0:01:23] } 29. Rxb4 { [%eval 0.71] [%clk 0:01:34] } 29... Rg1+? { [%eval 2.26] } { Mistake. Rg2 was best. } { [%clk 0:00:43] } 30. Kb2 { [%eval 2.16] [%clk 0:01:58] } 30... Rg2 { [%eval 2.19] [%clk 0:01:05] } 31. Rc4?? { [%eval 0.0] } { Blunder. Ka3 was best. } { [%clk 0:02:17] } 31... Rxc4 { [%eval 0.0] [%clk 0:01:11] } 32. bxc4 { [%eval 0.0] [%clk 0:02:43] } 32... Rf2 { [%eval 0.1] [%clk 0:01:20] } 33. Rd7 { [%eval 0.0] [%clk 0:00:59] } 33... Rxf4 { [%eval 0.0] [%clk 0:01:38] } 34. Rxd6 { [%eval 0.0] [%clk 0:01:25] } 34... Rxc4 { [%eval -0.01] [%clk 0:01:23] } 35. Rxa6 { [%eval -0.09] [%clk 0:01:45] } 35... h5 { [%eval 0.0] [%clk 0:00:55] } 36. gxh6 { [%eval 0.0] [%clk 0:02:08] } 36... Kh7 { [%eval 0.07] [%clk 0:00:36] } 37. Ra7 { [%eval 0.0] [%clk 0:02:01] } 37... Kxh6 { [%eval 0.12] [%clk 0:00:36] } 38. Rxf7 { [%eval 0.0] [%clk 0:02:26] } 38... Rxa4 { [%eval 0.0] [%clk 0:01:03] } 39. Kc3 { [%eval 0.0] [%clk 0:02:25] } 39... g5 { [%eval 0.0] [%clk 0:00:52] } 40. Kd3 { [%eval 0.0] [%clk 0:02:45] } 40... Kh5 { [%eval 0.0] [%clk 0:01:03] } 41. Ke3 { [%eval 0.0] [%clk 0:02:45] } 41... Rc4 { [%eval -0.01] [%clk 0:29:00] } 42. Kf3 { [%eval 0.0] [%clk 0:32:21] } 42... Rc3+ { [%eval 0.0] [%clk 0:28:57] } 43. Kg2 { [%eval 0.0] [%clk 0:32:41] } 43... Rxc2+ { [%eval -0.18] [%clk 0:29:22] } 44. Kg1 { [%eval 0.0] [%clk 0:29:12] } 44... Kh4 { [%eval 0.0] [%clk 0:29:32] } 45. Ra7 { [%eval 0.0] [%clk 0:29:15] } 45... g4 { [%eval 0.0] [%clk 0:29:46] } 46. Ra3 { [%eval 0.0] [%clk 0:29:31] } 46... Rb2 { [%eval 0.0] [%clk 0:29:08] } 47. Rc3 { [%eval 0.0] [%clk 0:29:53] } 47... Re2 { [%eval 0.0] [%clk 0:29:06] } 48. Ra3 { [%eval 0.0] [%clk 0:29:58] } 48... Kg5 { [%eval 0.0] [%clk 0:29:29] } 49. Ra5+ { [%eval 0.0] [%clk 0:29:36] } 49... Kf4 { [%eval 0.0] [%clk 0:29:39] } 50. Ra4+ { [%eval 0.0] [%clk 0:29:51] } 50... Kf3 { [%eval 0.0] [%clk 0:29:37] } 51. Ra3+ { [%eval 0.0] [%clk 0:30:13] } 51... Re3 { [%eval 0.0] [%clk 0:30:02] } 52. Rxe3+ { [%eval 0.0] [%clk 0:30:37] } 52... Kxe3 { [%eval 0.0] [%clk 0:30:29] } 53. Kg2 { [%eval 0.0] [%clk 0:31:01] } 53... Kf4 { [%eval 0.0] [%clk 0:30:56] } 54. Kf2 { [%eval 0.0] [%clk 0:31:24] } 54... g3+ { [%eval 0.0] [%clk 0:31:24] } 55. Kg2 { [%eval 0.0] [%clk 0:31:48] } 55... Kg4 { [%eval 0.0] [%clk 0:31:51] } 56. Kg1 { [%eval 0.0] [%clk 0:32:06] } 56... Kf3 { [%eval 0.0] [%clk 0:32:15] } 57. Kf1 { [%eval 0.0] [%clk 0:32:33] } 57... g2+ { [%clk 0:32:41] } 58. Kg1 { [%clk 0:33:00] } 58... Kg3 { [%clk 0:32:38] } 1/2-1/2