Event: Round 1: Classen, Marnin - Guo, Ethan
Date: 2025-04-16
White: Classen, Marnin
WhiteElo: 1630
Black: Guo, Ethan
BlackTitle: CM
BlackElo: 2060
Result: 0-1
ECO: E30
Opening: Nimzo-Indian Defense: Leningrad Variation
Variant: Standard
TimeControl: 5+3

1. d4 { [%eval 0.17] [%clk 0:05:05] } 1... Nf6 { [%eval 0.19] [%clk 0:05:05] } 2. c4 { [%eval 0.18] [%clk 0:05:04] } 2... e6 { [%eval 0.14] [%clk 0:05:05] } 3. Nc3 { [%eval 0.09] [%clk 0:05:03] } 3... Bb4 { [%eval 0.09] [%clk 0:05:06] } 4. Bg5 { [%eval -0.05] [%clk 0:04:54] } 4... c5 { [%eval 0.0] [%clk 0:05:02] } 5. e3?! { [%eval -0.93] } { Inaccuracy. Nf3 was best. } { [%clk 0:04:52] } 5... h6?! { [%eval 0.0] } { Inaccuracy. Qa5 was best. } { [%clk 0:04:57] } 6. Bh4 { [%eval 0.0] [%clk 0:04:54] } 6... Qa5 { [%eval 0.0] [%clk 0:04:36] } 7. Qc2 { [%eval -0.04] [%clk 0:04:46] } 7... Nc6 { [%eval 0.24] [%clk 0:04:14] } 8. Ne2 { [%eval 0.0] [%clk 0:04:41] } 8... cxd4 { [%eval 0.0] [%clk 0:03:53] } 9. exd4 { [%eval -0.41] [%clk 0:04:40] } 9... Bxc3+?! { [%eval 0.24] } { Inaccuracy. Be7 was best. } { [%clk 0:03:53] } 10. Qxc3 { [%eval 0.2] [%clk 0:04:39] } 10... Qxc3+ { [%eval 0.29] [%clk 0:03:51] } 11. bxc3?! { [%eval -0.29] } { Inaccuracy. Nxc3 was best. } { [%clk 0:04:40] } 11... g5 { [%eval 0.04] [%clk 0:03:53] } 12. Bg3 { [%eval 0.13] [%clk 0:04:41] } 12... Ne4 { [%eval 0.14] [%clk 0:03:45] } 13. f3 { [%eval 0.08] [%clk 0:04:40] } 13... Nxg3 { [%eval 0.15] [%clk 0:03:46] } 14. Nxg3 { [%eval 0.08] [%clk 0:04:39] } 14... b6 { [%eval 0.16] [%clk 0:03:32] } 15. Bd3 { [%eval -0.33] [%clk 0:04:37] } 15... Ba6 { [%eval -0.33] [%clk 0:03:34] } 16. Ne4 { [%eval -0.38] [%clk 0:04:31] } 16... Ke7 { [%eval -0.47] [%clk 0:03:30] } 17. O-O?? { [%eval -2.34] } { Blunder. Ke2 was best. } { [%clk 0:04:30] } 17... Na5 { [%eval -2.26] [%clk 0:03:29] } 18. c5?? { [%eval -5.17] } { Blunder. f4 was best. } { [%clk 0:04:27] } 18... Bxd3 { [%eval -4.95] [%clk 0:03:29] } 19. cxb6 { [%eval -6.03] [%clk 0:04:26] } 19... Bxf1 { [%eval -5.98] [%clk 0:03:28] } 20. Rxf1 { [%eval -6.26] [%clk 0:04:26] } 20... axb6 { [%eval -6.04] [%clk 0:03:29] } 21. Rd1 { [%eval -6.63] [%clk 0:04:26] } 21... d5 { [%eval -6.64] [%clk 0:03:31] } 22. Nd2 { [%eval -6.65] [%clk 0:04:26] } 22... Nc6 { [%eval -6.54] [%clk 0:03:33] } 23. Ra1 { [%eval -6.44] [%clk 0:04:23] } 23... Ra3 { [%clk 0:03:33] } 24. Nb3 { [%clk 0:04:23] } 24... Rha8 { [%clk 0:03:35] } 25. Nc1 { [%clk 0:04:24] } 25... Rxc3 { [%clk 0:03:36] } 26. Rb1 { [%clk 0:04:25] } 26... Nxd4 { [%clk 0:03:36] } 27. Kf1 { [%clk 0:04:22] } 27... Rac8 { [%clk 0:03:36] } 28. Ne2 { [%clk 0:04:21] } 28... Nxe2 { [%clk 0:03:37] } 29. Kxe2 { [%clk 0:04:22] } 29... Rc2+ { [%clk 0:03:40] } 30. Kf1 { [%clk 0:04:24] } 30... Rxa2 { [%clk 0:03:42] } 31. Rxb6 { [%clk 0:04:24] } 31... Rc1# { [%clk 0:03:43] } 0-1