Event: Round 4: Aravindhan, Achyuth - Koppenens, Oscar
Date: 2025-04-28
White: Aravindhan, Achyuth
WhiteTitle: CM
WhiteElo: 2083
Black: Koppenens, Oscar
BlackElo: 2024
Result: 1-0
ECO: B54
Opening: Sicilian Defense: Modern Variations, Main Line
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:27] } 1... c5 { [%eval 0.25] [%clk 1:30:55] } 2. Nf3 { [%eval 0.2] [%clk 1:29:59] } 2... d6 { [%eval 0.31] [%clk 1:31:18] } 3. d4 { [%eval 0.22] [%clk 1:30:25] } 3... cxd4 { [%eval 0.19] [%clk 1:31:45] } 4. Nxd4 { [%eval 0.18] [%clk 1:30:50] } 4... Nf6 { [%eval 0.25] [%clk 1:32:09] } 5. Nc3 { [%eval 0.32] [%clk 1:31:14] } 5... e5 { [%eval 0.47] [%clk 1:32:32] } 6. Ndb5 { [%eval 0.0] [%clk 1:28:20] } 6... a6 { [%eval 0.0] [%clk 1:31:38] } 7. Na3 { [%eval 0.0] [%clk 1:28:42] } 7... b5 { [%eval 0.18] [%clk 1:31:26] } 8. Nab1?! { [%eval -0.51] } { Inaccuracy. Nd5 was best. } { [%clk 1:18:07] } 8... b4? { [%eval 0.63] } { Mistake. Bb7 was best. } { [%clk 1:28:02] } 9. Nd5 { [%eval 0.54] [%clk 1:09:54] } 9... Nc6 { [%eval 0.7] [%clk 1:24:28] } 10. Bg5 { [%eval 0.5] [%clk 1:07:24] } 10... Be7 { [%eval 0.54] [%clk 1:24:41] } 11. Bxf6 { [%eval 0.58] [%clk 1:07:30] } 11... Bxf6 { [%eval 0.47] [%clk 1:24:59] } 12. Bc4 { [%eval 0.29] [%clk 1:06:44] } 12... Be6 { [%eval 0.46] [%clk 1:22:11] } 13. O-O { [%eval 0.53] [%clk 1:04:48] } 13... O-O { [%eval 0.45] [%clk 1:22:23] } 14. a3 { [%eval 0.5] [%clk 1:02:47] } 14... a5 { [%eval 0.52] [%clk 1:16:28] } 15. axb4 { [%eval 0.57] [%clk 0:57:17] } 15... Nxb4 { [%eval 0.56] [%clk 1:16:41] } 16. Nbc3 { [%eval 0.44] [%clk 0:57:21] } 16... Bg5 { [%eval 0.47] [%clk 1:15:19] } 17. Qe2 { [%eval 0.37] [%clk 0:49:56] } 17... g6 { [%eval 0.62] [%clk 1:13:31] } 18. Rfd1 { [%eval 0.71] [%clk 0:49:24] } 18... Rc8 { [%eval 0.68] [%clk 1:12:05] } 19. Bb3 { [%eval 0.27] [%clk 0:47:23] } 19... Nc6 { [%eval 0.39] [%clk 1:07:57] } 20. Nb5 { [%eval 0.49] [%clk 0:45:57] } 20... f5?? { [%eval 3.93] } { Blunder. Nd4 was best. } { [%clk 1:05:57] } 21. exf5 { [%eval 3.74] [%clk 0:39:23] } 21... gxf5 { [%eval 4.35] [%clk 1:05:27] } 22. Nxd6 { [%eval 4.12] [%clk 0:38:13] } 22... Rb8 { [%eval 4.92] [%clk 1:01:43] } 23. Nb4 { [%eval 4.64] [%clk 0:37:19] } 23... Bxb3 { [%eval 5.15] [%clk 0:59:42] } 24. Nxc6 { [%eval 5.07] [%clk 0:37:17] } 24... Qc7 { [%eval 5.37] [%clk 0:59:27] } 25. Nxb8 { [%eval 5.32] [%clk 0:37:21] } 25... Bxc2 { [%eval 5.45] [%clk 0:59:51] } 26. Na6 { [%eval 5.12] [%clk 0:37:26] } 26... Qc6 { [%eval 5.74] [%clk 1:00:12] } 27. Qc4+?! { [%eval 4.45] } { Inaccuracy. Qxe5 was best. } { [%clk 0:37:21] } 27... Qxc4 { [%eval 4.46] [%clk 1:00:37] } 28. Nxc4 { [%eval 4.44] [%clk 0:37:30] } 28... Bxd1 { [%eval 4.43] [%clk 1:00:59] } 29. Rxd1 { [%eval 4.35] [%clk 0:37:42] } 29... Ra8 { [%eval 4.85] [%clk 0:59:42] } 30. Nc7 { [%eval 4.87] [%clk 0:37:10] } 30... Rc8 { [%eval 4.62] [%clk 0:59:46] } 31. Ne6 { [%eval 4.11] [%clk 0:37:33] } 31... Bf6 { [%eval 4.3] [%clk 0:59:23] } 32. Nd6 { [%eval 3.5] [%clk 0:33:34] } 32... Rc2 { [%eval 4.3] [%clk 0:59:16] } 33. b3 { [%eval 4.2] [%clk 0:32:55] } 33... Rc3 { [%eval 4.85] [%clk 0:58:49] } 34. g3 { [%eval 4.33] [%clk 0:31:56] } 34... Rxb3 { [%eval 4.89] [%clk 0:58:43] } 35. Rc1 { [%eval 5.04] [%clk 0:31:51] } 35... Rb8 { [%eval 4.94] [%clk 0:57:57] } 36. Nxf5 { [%eval 4.84] [%clk 0:31:09] } 36... a4 { [%eval 4.72] [%clk 0:55:28] } 37. Nh6+ { [%eval 5.6] [%clk 0:31:17] } 37... Kh8 { [%eval 5.47] [%clk 0:55:31] } 38. Rc4 { [%eval 5.27] [%clk 0:31:35] } 38... Ra8?? { [%eval #4] } { Checkmate is now unavoidable. Bg7 was best. } { [%clk 0:55:24] } 39. Rg4 { [%eval #3] [%clk 0:31:56] } 1-0