Event: Round 4: Nicolas Cogan - Michael Tchuenbou
Date: 2023-07-05
White: Nicolas Cogan
Black: Michael Tchuenbou
Result: 1-0
ECO: D35
Opening: Queen's Gambit Declined: Exchange Variation, Positional Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 0:05:04] } 1... d5 { [%eval 0.27] [%clk 0:05:04] } 2. c4 { [%eval 0.29] [%clk 0:05:06] } 2... e6 { [%eval 0.3] [%clk 0:05:05] } 3. Nc3 { [%eval 0.39] [%clk 0:05:08] } 3... Nf6 { [%eval 0.43] [%clk 0:05:07] } 4. cxd5 { [%eval 0.39] [%clk 0:05:10] } 4... exd5 { [%eval 0.38] [%clk 0:05:09] } 5. Bg5 { [%eval 0.35] [%clk 0:05:12] } 5... Be7 { [%eval 0.28] [%clk 0:05:10] } 6. e3 { [%eval 0.25] [%clk 0:05:13] } 6... O-O { [%eval 0.33] [%clk 0:05:10] } 7. Bd3 { [%eval 0.2] [%clk 0:05:15] } 7... h6 { [%eval 0.29] [%clk 0:05:11] } 8. Bh4 { [%eval 0.19] [%clk 0:05:17] } 8... c6 { [%eval 0.22] [%clk 0:05:11] } 9. Nge2 { [%eval 0.22] [%clk 0:05:16] } 9... Nbd7 { [%eval 0.28] [%clk 0:05:12] } 10. Qc2 { [%eval 0.24] [%clk 0:05:17] } 10... Re8 { [%eval 0.18] [%clk 0:05:14] } 11. O-O { [%eval 0.34] [%clk 0:05:18] } 11... Nf8 { [%eval 0.42] [%clk 0:05:15] } 12. f3 { [%eval 0.47] [%clk 0:05:19] } 12... Be6 { [%eval 0.46] [%clk 0:05:14] } 13. Rad1 { [%eval 0.55] [%clk 0:05:20] } 13... Rc8 { [%eval 0.54] [%clk 0:05:15] } 14. e4 { [%eval 0.03] [%clk 0:05:20] } 14... dxe4 { [%eval 0.08] [%clk 0:05:14] } 15. fxe4 { [%eval 0.07] [%clk 0:05:22] } 15... Qb6?! { [%eval 0.69] } { Inaccuracy. Ng4 was best. } { [%clk 0:05:07] } 16. Kh1?! { [%eval -0.06] } { Inaccuracy. Na4 was best. } { [%clk 0:05:18] } 16... c5?! { [%eval 0.82] } { Inaccuracy. Ng4 was best. } { [%clk 0:05:01] } 17. d5?! { [%eval 0.21] } { Inaccuracy. Bxf6 was best. } { [%clk 0:05:15] } 17... Bd7?? { [%eval 2.06] } { Blunder. c4 was best. } { [%clk 0:04:57] } 18. Bc4 { [%eval 1.55] [%clk 0:05:06] } 18... Ng6 { [%eval 1.53] [%clk 0:04:53] } 19. Bg3? { [%eval 0.26] } { Mistake. Bxf6 was best. } { [%clk 0:05:04] } 19... Bd6 { [%eval 0.21] [%clk 0:04:50] } 20. b3?! { [%eval -0.49] } { Inaccuracy. Rxf6 was best. } { [%clk 0:04:37] } 20... a6 { [%eval -0.29] [%clk 0:04:43] } 21. Nf4?! { [%eval -1.26] } { Inaccuracy. Rxf6 was best. } { [%clk 0:04:20] } 21... Ng4? { [%eval 0.39] } { Mistake. Bxf4 was best. } { [%clk 0:04:21] } 22. Qd2?! { [%eval -0.26] } { Inaccuracy. Nxg6 was best. } { [%clk 0:03:43] } 22... Qc7 { [%eval -0.26] [%clk 0:04:07] } 23. Nh5?! { [%eval -1.21] } { Inaccuracy. a4 was best. } { [%clk 0:02:47] } 23... N4e5?! { [%eval -0.65] } { Inaccuracy. b5 was best. } { [%clk 0:03:39] } 24. Be2 { [%eval -0.76] [%clk 0:02:45] } 24... b5 { [%eval -0.65] [%clk 0:03:29] } 25. Rc1 { [%eval -0.59] [%clk 0:02:47] } 25... Qa5 { [%eval -0.58] [%clk 0:03:18] } 26. Qb2?! { [%eval -1.49] } { Inaccuracy. Nb1 was best. } { [%clk 0:02:34] } 26... c4 { [%eval -1.46] [%clk 0:03:13] } 27. Nb1 { [%eval -1.43] [%clk 0:02:28] } 27... cxb3 { [%eval -1.58] [%clk 0:02:23] } 28. axb3 { [%eval -1.58] [%clk 0:02:12] } 28... Rc7?? { [%eval 1.04] } { Blunder. Rxc1 was best. } { [%clk 0:02:04] } 29. Rxc7?? { [%eval -1.32] } { Blunder. b4 was best. } { [%clk 0:02:11] } 29... Qxc7 { [%eval -1.32] [%clk 0:02:02] } 30. Nd2 { [%eval -1.46] [%clk 0:01:58] } 30... Ng4?? { [%eval #1] } { Checkmate is now unavoidable. a5 was best. } { [%clk 0:01:46] } 31. Qxg7# 1-0