Event: ODJM A 2025
Site: Willingen GER
Date: 2025-06-14
White: Mehner, Lorenz
WhiteElo: 2001
Black: Zhang, Onno
BlackElo: 1859
Result: 1-0
ECO: E44
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard
Termination: normal

1. d4 { [%eval 0.17] [%clk 1:30:55] } 1... Nf6 { [%eval 0.19] [%clk 1:30:54] } 2. c4 { [%eval 0.18] [%clk 1:31:21] } 2... e6 { [%eval 0.14] [%clk 1:31:17] } 3. Nc3 { [%eval 0.09] [%clk 1:31:44] } 3... Bb4 { [%eval 0.09] [%clk 1:31:41] } 4. e3 { [%eval 0.11] [%clk 1:32:02] } 4... b6 { [%eval 0.29] [%clk 1:31:53] } 5. Ne2 { [%eval 0.26] [%clk 1:31:54] } 5... Bb7 { [%eval 0.4] [%clk 1:32:00] } 6. a3 { [%eval 0.44] [%clk 1:32:13] } 6... Be7 { [%eval 0.55] [%clk 1:29:49] } 7. d5 { [%eval 0.47] [%clk 1:31:41] } 7... exd5 { [%eval 0.71] [%clk 1:28:33] } 8. cxd5 { [%eval 0.78] [%clk 1:31:38] } 8... O-O { [%eval 0.76] [%clk 1:27:43] } 9. Ng3 { [%eval 0.64] [%clk 1:31:10] } 9... Re8 { [%eval 0.67] [%clk 1:27:34] } 10. Bc4 { [%eval 0.85] [%clk 1:30:29] } 10... g6 { [%eval 1.18] [%clk 1:26:29] } 11. O-O { [%eval 1.1] [%clk 1:29:40] } 11... d6 { [%eval 1.01] [%clk 1:24:48] } 12. b4 { [%eval 1.11] [%clk 1:26:54] } 12... Nbd7 { [%eval 1.12] [%clk 1:23:14] } 13. Bb2 { [%eval 0.87] [%clk 1:25:01] } 13... Bf8 { [%eval 0.76] [%clk 1:22:48] } 14. Rc1 { [%eval 0.69] [%clk 1:06:34] } 14... h5 { [%eval 1.09] [%clk 1:21:37] } 15. Qc2 { [%eval 0.79] [%clk 0:54:19] } 15... h4 { [%eval 0.82] [%clk 1:18:35] } 16. Nge4 { [%eval 0.93] [%clk 0:53:41] } 16... Bg7 { [%eval 1.18] [%clk 1:17:13] } 17. Nxf6+ { [%eval 1.05] [%clk 0:47:34] } 17... Nxf6 { [%eval 1.01] [%clk 1:13:22] } 18. h3 { [%eval 1.03] [%clk 0:45:07] } 18... c6?! { [%eval 1.68] } { Inaccuracy. a6 was best. } { [%clk 1:10:20] } 19. Rfd1?! { [%eval 0.56] } { Inaccuracy. dxc6 was best. } { [%clk 0:39:14] } 19... c5 { [%eval 0.61] [%clk 1:03:58] } 20. Re1 { [%eval 0.13] [%clk 0:27:09] } 20... Rc8 { [%eval 0.27] [%clk 0:56:21] } 21. b5?! { [%eval -0.32] } { Inaccuracy. Qb3 was best. } { [%clk 0:20:33] } 21... Nd7 { [%eval -0.25] [%clk 0:52:58] } 22. Nd1 { [%eval -0.44] [%clk 0:15:27] } 22... Ne5 { [%eval 0.0] [%clk 0:43:23] } 23. f4 { [%eval -0.01] [%clk 0:10:47] } 23... Nxc4 { [%eval -0.04] [%clk 0:43:17] } 24. Qxc4 { [%eval -0.18] [%clk 0:10:46] } 24... Bxb2 { [%eval 0.0] [%clk 0:43:32] } 25. Nxb2 { [%eval 0.0] [%clk 0:10:54] } 25... f5 { [%eval 0.0] [%clk 0:43:19] } 26. Qd3 { [%eval 0.0] [%clk 0:06:25] } 26... Rc7?! { [%eval 0.71] } { Inaccuracy. Qe7 was best. } { [%clk 0:40:52] } 27. Nc4 { [%eval 0.69] [%clk 0:05:59] } 27... Rce7 { [%eval 0.76] [%clk 0:40:59] } 28. Kh2 { [%eval 0.63] [%clk 0:04:12] } 28... Re4?! { [%eval 1.66] } { Inaccuracy. Rg7 was best. } { [%clk 0:39:01] } 29. Rg1? { [%eval 0.37] } { Mistake. Nd2 was best. } { [%clk 0:03:08] } 29... Qf6 { [%eval 0.43] [%clk 0:37:53] } 30. g3 { [%eval 0.4] [%clk 0:02:52] } 30... hxg3+ { [%eval 0.37] [%clk 0:36:50] } 31. Rxg3 { [%eval 0.33] [%clk 0:02:56] } 31... Kf7 { [%eval 0.45] [%clk 0:35:22] } 32. Rcg1 { [%eval 0.0] [%clk 0:02:27] } 32... Rg8 { [%eval 0.0] [%clk 0:35:33] } 33. a4 { [%eval 0.0] [%clk 0:01:52] } 33... Ba8?! { [%eval 1.0] } { Inaccuracy. Ke7 was best. } { [%clk 0:22:22] } 34. Rg5?! { [%eval 0.04] } { Inaccuracy. a5 was best. } { [%clk 0:01:48] } 34... Qe7?! { [%eval 1.04] } { Inaccuracy. Ke7 was best. } { [%clk 0:21:08] } 35. R1g3 { [%eval 1.11] [%clk 0:01:11] } 35... Qf6 { [%eval 1.0] [%clk 0:12:52] } 36. Rg1?! { [%eval 0.12] } { Inaccuracy. a5 was best. } { [%clk 0:01:11] } 36... Rge8?? { [%eval 5.62] } { Blunder. Ke7 was best. } { [%clk 0:10:41] } 37. Rxg6 { [%eval 5.67] [%clk 0:00:55] } 37... Qxg6 { [%eval 5.64] [%clk 0:10:52] } 38. Rxg6 { [%eval 5.33] [%clk 0:01:18] } 38... Kxg6 { [%eval 5.47] [%clk 0:11:17] } 39. Nxd6 { [%eval 6.17] [%clk 0:01:34] } 39... c4 { [%eval 6.77] [%clk 0:10:57] } 40. Qc2 { [%eval 6.55] [%clk 0:01:11] } 40... Bxd5 { [%eval 7.27] [%clk 0:09:58] } 41. Qg2+ { [%eval 6.97] [%clk 0:27:23] } 41... Kh7 { [%clk 0:38:53] } 42. Nxe8 { [%clk 0:25:53] } 1-0