Event: Round 10: Grahn, Vidar - Vaidyanathan, Adithya
Date: 2025-06-13
White: Grahn, Vidar
WhiteTitle: FM
WhiteElo: 2201
Black: Vaidyanathan, Adithya
BlackElo: 2147
Result: 1-0
ECO: A37
Opening: English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3
Variant: Standard
TimeControl: 15+10

1. Nf3 { [%eval 0.1] [%clk 0:15:18] } 1... c5 { [%eval 0.25] [%clk 0:15:19] } 2. g3 { [%eval 0.03] [%clk 0:15:17] } 2... g6 { [%eval 0.13] [%clk 0:15:19] } 3. Bg2 { [%eval 0.16] [%clk 0:15:25] } 3... Bg7 { [%eval 0.17] [%clk 0:14:55] } 4. c4 { [%eval 0.16] [%clk 0:15:03] } 4... Nc6 { [%eval 0.12] [%clk 0:15:33] } 5. Nc3 { [%eval 0.06] [%clk 0:15:10] } 5... e5 { [%eval 0.19] [%clk 0:15:41] } 6. a3 { [%eval 0.2] [%clk 0:15:05] } 6... a5 { [%eval 0.29] [%clk 0:15:38] } 7. d3 { [%eval 0.21] [%clk 0:15:14] } 7... Nge7 { [%eval 0.28] [%clk 0:15:43] } 8. Nd2 { [%eval 0.33] [%clk 0:15:23] } 8... d6 { [%eval 0.32] [%clk 0:15:43] } 9. Nf1 { [%eval 0.29] [%clk 0:15:31] } 9... O-O { [%eval 0.17] [%clk 0:15:29] } 10. Ne3 { [%eval 0.28] [%clk 0:15:29] } 10... h6 { [%eval 0.4] [%clk 0:14:59] } 11. O-O { [%eval 0.43] [%clk 0:15:21] } 11... f5 { [%eval 0.46] [%clk 0:14:50] } 12. Ned5 { [%eval 0.18] [%clk 0:15:29] } 12... Nxd5 { [%eval 0.13] [%clk 0:14:53] } 13. Nxd5 { [%eval 0.17] [%clk 0:15:30] } 13... Be6 { [%eval 0.21] [%clk 0:12:11] } 14. Rb1 { [%eval 0.17] [%clk 0:15:30] } 14... Bxd5 { [%eval 0.64] [%clk 0:11:20] } 15. Bxd5+ { [%eval 0.7] [%clk 0:13:45] } 15... Kh7 { [%eval 0.63] [%clk 0:11:28] } 16. Bd2 { [%eval 0.67] [%clk 0:13:53] } 16... Qd7 { [%eval 0.63] [%clk 0:08:58] } 17. b4 { [%eval 0.48] [%clk 0:13:54] } 17... cxb4 { [%eval 0.56] [%clk 0:08:48] } 18. axb4 { [%eval 0.53] [%clk 0:14:03] } 18... a4 { [%eval 0.51] [%clk 0:08:57] } 19. e3?! { [%eval -0.25] } { Inaccuracy. Bc3 was best. } { [%clk 0:11:54] } 19... Ne7 { [%eval -0.07] [%clk 0:02:59] } 20. Bg2 { [%eval -0.06] [%clk 0:10:54] } 20... d5 { [%eval -0.06] [%clk 0:02:59] } 21. Bc3 { [%eval -0.19] [%clk 0:10:09] } 21... Rfc8 { [%eval 0.3] [%clk 0:01:21] } 22. b5 { [%eval 0.16] [%clk 0:09:29] } 22... Kg8? { [%eval 1.27] } { Mistake. dxc4 was best. } { [%clk 0:00:17] } 23. Bb4 { [%eval 1.3] [%clk 0:09:28] } 23... dxc4? { [%eval 3.18] } { Mistake. e4 was best. } { [%clk 0:00:13] } 24. dxc4 { [%eval 2.85] [%clk 0:09:36] } 24... Qc7? { [%eval 5.07] } { Mistake. Qxd1 was best. } { [%clk 0:00:12] } 25. Bd6? { [%eval 3.15] } { Mistake. b6 was best. } { [%clk 0:08:51] } 25... Qd7 { [%eval 3.16] [%clk 0:00:16] } 26. Ba3 { [%eval 2.68] [%clk 0:08:07] } 26... Rd8 { [%eval 2.52] [%clk 0:00:13] } 27. Qc2 { [%eval 2.77] [%clk 0:07:11] } 27... e4 { [%eval 2.73] [%clk 0:00:16] } 28. Rfd1 { [%eval 2.81] [%clk 0:07:18] } 28... Qe8 { [%eval 2.77] [%clk 0:00:14] } 29. Bf1 { [%eval 2.33] [%clk 0:07:03] } 29... Nc8? { [%eval 4.14] } { Mistake. g5 was best. } { [%clk 0:00:12] } 30. c5 { [%eval 3.51] [%clk 0:06:58] } 30... Ne7 { [%eval 3.73] [%clk 0:00:13] } 31. Bc4+ { [%eval 3.66] [%clk 0:07:03] } 31... Kh7 { [%eval 3.43] [%clk 0:00:21] } 32. Rd6 { [%eval 3.59] [%clk 0:06:50] } 32... Rxd6 { [%eval 3.57] [%clk 0:00:15] } 33. cxd6 { [%eval 3.44] [%clk 0:06:58] } 33... Nc8 { [%eval 3.83] [%clk 0:00:17] } 34. Bd5 { [%eval 3.69] [%clk 0:06:55] } 34... Nb6 { [%eval 4.22] [%clk 0:00:12] } 35. Bxb7 { [%eval 4.15] [%clk 0:07:00] } 35... Rb8 { [%eval 4.44] [%clk 0:00:14] } 36. Qc7 { [%eval 4.14] [%clk 0:06:41] } 36... Na8?! { [%eval 6.25] } { Inaccuracy. Nc4 was best. } { [%clk 0:00:13] } 37. Bxa8 { [%eval 6.25] [%clk 0:06:42] } 37... Rxa8 { [%eval 7.2] [%clk 0:00:20] } 38. b6 { [%eval 7.2] [%clk 0:06:41] } 38... Qe6 { [%eval 7.38] [%clk 0:00:12] } 39. b7 { [%eval 7.04] [%clk 0:06:35] } 39... Qa2 { [%eval 7.23] [%clk 0:00:14] } 40. Rf1 { [%eval 7.53] [%clk 0:06:38] } 40... Rg8 { [%eval 7.55] [%clk 0:00:05] } 41. b8=Q { [%eval 7.36] [%clk 0:06:34] } 41... Rxb8 { [%eval 7.37] [%clk 0:00:26] } 42. Qxb8 { [%eval 7.15] [%clk 0:06:43] } 42... Qxa3 { [%eval 7.57] [%clk 0:00:35] } 43. d7 { [%eval 7.41] [%clk 0:06:51] } 43... Bf6 { [%eval 7.59] [%clk 0:00:25] } 44. d8=Q { [%eval 7.39] [%clk 0:06:56] } 44... Bxd8 { [%eval 7.43] [%clk 0:00:32] } 45. Qxd8 { [%eval 7.06] [%clk 0:07:05] } 45... h5? { [%eval #18] } { Checkmate is now unavoidable. Qd3 was best. } { [%clk 0:00:31] } 46. Rd1 { [%eval 11.34] [%clk 0:07:12] } 46... Qb2?! { [%eval #14] } { Checkmate is now unavoidable. Qd3 was best. } { [%clk 0:00:31] } 47. Qe7+? { [%eval 9.25] } { Lost forced checkmate sequence. Rd7+ was best. } { [%clk 0:07:09] } 47... Kh6 { [%eval 9.21] [%clk 0:00:37] } 48. h4 { [%eval 7.82] [%clk 0:07:13] } 48... Qb3? { [%eval #3] } { Checkmate is now unavoidable. Qg7 was best. } { [%clk 0:00:19] } 49. Qf8+ { [%eval #2] [%clk 0:07:18] } 1-0