Event: Round 7: Immo, Dr. Ratzmann - Claus Pitschka
Site: https://lichess.org/study/3lCk5YtK/9XHfNinu
Date: 2022-08-18
White: Immo, Dr. Ratzmann
Black: Claus Pitschka
Result: 1/2-1/2
ECO: A43
Opening: Benoni Defense: Old Benoni
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:30] } 1... c5?! { [%eval 0.89] } { Inaccuracy. Nf6 was best. } { [%clk 1:22:02] } 2. d5 { [%eval 0.8] [%clk 1:30:54] } 2... d6 { [%eval 0.82] [%clk 1:22:23] } 3. c4 { [%eval 0.78] [%clk 1:31:13] } 3... e5 { [%eval 1.28] [%clk 1:22:45] } 4. e4 { [%eval 0.98] [%clk 1:31:32] } 4... Be7 { [%eval 1.22] [%clk 1:23:09] } 5. Nf3 { [%eval 1.23] [%clk 1:31:59] } 5... Bg4 { [%eval 1.3] [%clk 1:22:36] } 6. Nbd2 { [%eval 0.97] [%clk 1:32:21] } 6... Na6 { [%eval 1.17] [%clk 1:18:19] } 7. Be2 { [%eval 1.02] [%clk 1:27:21] } 7... Nc7 { [%eval 1.16] [%clk 1:17:03] } 8. O-O { [%eval 0.79] [%clk 1:18:28] } 8... Bd7 { [%eval 1.19] [%clk 1:08:24] } 9. a4 { [%eval 0.91] [%clk 1:13:26] } 9... f5?! { [%eval 1.53] } { Inaccuracy. Nf6 was best. } { [%clk 1:06:06] } 10. exf5 { [%eval 1.46] [%clk 1:11:49] } 10... Bxf5 { [%eval 1.61] [%clk 1:06:21] } 11. Ne1?! { [%eval 0.94] } { Inaccuracy. Ra3 was best. } { [%clk 1:04:17] } 11... Bg5 { [%eval 1.3] [%clk 1:00:29] } 12. Bg4 { [%eval 0.87] [%clk 1:02:15] } 12... Nh6 { [%eval 0.78] [%clk 0:57:03] } 13. Bxf5 { [%eval 0.66] [%clk 0:52:35] } 13... Nxf5 { [%eval 0.85] [%clk 0:57:19] } 14. Ne4?! { [%eval 0.24] } { Inaccuracy. Qh5+ was best. } { [%clk 0:49:03] } 14... Bxc1 { [%eval 0.25] [%clk 0:57:09] } 15. Rxc1 { [%eval 0.24] [%clk 0:49:31] } 15... O-O { [%eval 0.19] [%clk 0:56:57] } 16. Nf3 { [%eval 0.19] [%clk 0:44:49] } 16... b6 { [%eval 0.12] [%clk 0:50:01] } 17. Qd2 { [%eval -0.07] [%clk 0:41:24] } 17... a6?! { [%eval 0.67] } { Inaccuracy. Qd7 was best. } { [%clk 0:47:50] } 18. Ra1 { [%eval 0.3] [%clk 0:37:40] } 18... Qd7 { [%eval 0.3] [%clk 0:45:35] } 19. b3 { [%eval -0.02] [%clk 0:37:35] } 19... b5?! { [%eval 0.82] } { Inaccuracy. h6 was best. } { [%clk 0:44:56] } 20. axb5 { [%eval 1.0] [%clk 0:36:10] } 20... axb5 { [%eval 0.79] [%clk 0:45:14] } 21. Rxa8 { [%eval 0.72] [%clk 0:31:26] } 21... Rxa8 { [%eval 0.72] [%clk 0:45:36] } 22. Qb2 { [%eval 0.24] [%clk 0:31:41] } 22... h6 { [%eval 0.25] [%clk 0:42:36] } 23. Ra1 { [%eval 0.07] [%clk 0:31:53] } 23... Ra6?! { [%eval 0.7] } { Inaccuracy. Rxa1+ was best. } { [%clk 0:42:02] } 24. Ra2 { [%eval 0.16] [%clk 0:28:23] } 24... Qc8 { [%eval 0.4] [%clk 0:35:11] } 25. Qa1 { [%eval 0.45] [%clk 0:28:00] } 25... bxc4 { [%eval 0.67] [%clk 0:32:21] } 26. Rxa6 { [%eval 0.4] [%clk 0:26:18] } 26... Nxa6 { [%eval 0.5] [%clk 0:32:24] } 27. bxc4 { [%eval 0.33] [%clk 0:26:45] } 27... Nb4? { [%eval 1.62] } { Mistake. Nc7 was best. } { [%clk 0:30:27] } 28. h3?! { [%eval 0.86] } { Inaccuracy. Qb1 was best. } { [%clk 0:24:04] } 28... Qd8 { [%eval 0.99] [%clk 0:22:29] } 29. Qa7 { [%eval 1.14] [%clk 0:18:30] } 29... Nc2 { [%eval 1.22] [%clk 0:18:29] } 30. Qa6 { [%eval 1.08] [%clk 0:16:43] } 30... Ncd4 { [%eval 0.92] [%clk 0:17:04] } 31. Nxd4 { [%eval 1.15] [%clk 0:16:03] } 31... exd4 { [%eval 1.25] [%clk 0:16:04] } 32. g4? { [%eval 0.0] } { Mistake. Nxc5 was best. } { [%clk 0:15:07] } 32... Qe8 { [%eval 0.0] [%clk 0:14:56] } 33. gxf5 { [%eval 0.0] [%clk 0:13:53] } 33... Qxe4 { [%eval 0.0] [%clk 0:14:58] } 34. Qc8+ { [%eval 0.0] [%clk 0:14:10] } 1/2-1/2