Event: Round 7: Jones, Graeme - Kalavannan, Koby
Date: 2025-05-30
White: Jones, Graeme
WhiteElo: 1781
Black: Kalavannan, Koby
BlackTitle: FM
BlackElo: 2303
Result: 0-1
ECO: B21
Opening: Sicilian Defense: McDonnell Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... c5 { [%eval 0.25] [%clk 1:28:38] } 2. f4 { [%eval 0.0] [%clk 1:31:19] } 2... e6 { [%eval -0.03] [%clk 1:23:34] } 3. Nf3 { [%eval -0.07] [%clk 1:31:34] } 3... d5 { [%eval 0.0] [%clk 1:24:00] } 4. exd5 { [%eval -0.31] [%clk 1:29:35] } 4... exd5 { [%eval -0.24] [%clk 1:23:53] } 5. Bb5+ { [%eval -0.18] [%clk 1:29:02] } 5... Bd7 { [%eval -0.07] [%clk 1:22:38] } 6. Qe2+ { [%eval -0.14] [%clk 1:28:27] } 6... Qe7 { [%eval 0.0] [%clk 1:20:54] } 7. Qxe7+ { [%eval -0.46] [%clk 1:26:15] } 7... Bxe7 { [%eval -0.01] [%clk 1:21:15] } 8. Bxd7+ { [%eval -0.13] [%clk 1:26:32] } 8... Nxd7 { [%eval -0.11] [%clk 1:21:31] } 9. d4 { [%eval -0.35] [%clk 1:24:41] } 9... Ngf6 { [%eval -0.4] [%clk 1:21:14] } 10. O-O { [%eval -0.46] [%clk 1:23:36] } 10... O-O { [%eval -0.42] [%clk 1:20:37] } 11. Nc3 { [%eval -0.54] [%clk 1:20:34] } 11... cxd4 { [%eval -0.46] [%clk 1:20:15] } 12. Nb5 { [%eval -0.67] [%clk 1:16:55] } 12... d3?! { [%eval -0.06] } { Inaccuracy. Bc5 was best. } { [%clk 1:19:23] } 13. c3?! { [%eval -1.12] } { Inaccuracy. cxd3 was best. } { [%clk 1:12:50] } 13... Bc5+ { [%eval -1.3] [%clk 1:05:07] } 14. Nbd4 { [%eval -1.27] [%clk 1:12:22] } 14... Bb6 { [%eval -0.86] [%clk 1:02:40] } 15. Be3? { [%eval -2.11] } { Mistake. Rd1 was best. } { [%clk 1:08:40] } 15... Rfe8 { [%eval -2.03] [%clk 1:01:42] } 16. Rfe1 { [%eval -2.11] [%clk 1:03:05] } 16... Ne4?! { [%eval -1.17] } { Inaccuracy. Ng4 was best. } { [%clk 0:55:06] } 17. Rad1 { [%eval -1.39] [%clk 1:01:18] } 17... Ndc5 { [%eval -1.43] [%clk 0:55:34] } 18. Ne5? { [%eval -3.3] } { Mistake. Nf5 was best. } { [%clk 0:55:44] } 18... d2 { [%eval -3.21] [%clk 0:55:45] } 19. Bxd2 { [%eval -3.34] [%clk 0:54:45] } 19... f6 { [%eval -3.16] [%clk 0:56:09] } 20. Nef3 { [%eval -3.15] [%clk 0:46:58] } 20... Nd3 { [%eval -3.28] [%clk 0:56:31] } 21. Re2 { [%eval -3.13] [%clk 0:45:55] } 21... Nxb2 { [%eval -3.28] [%clk 0:56:54] } 22. Rc1 { [%eval -3.34] [%clk 0:40:43] } 22... Nd3 { [%eval -3.29] [%clk 0:56:48] } 23. Rc2 { [%eval -3.39] [%clk 0:39:25] } 23... Nxd2 { [%eval -3.15] [%clk 0:57:07] } 24. Rexd2 { [%eval -3.17] [%clk 0:34:56] } 24... Nxf4 { [%eval -3.19] [%clk 0:55:34] } 25. Kf1 { [%eval -3.47] [%clk 0:34:56] } 25... Rac8 { [%eval -3.5] [%clk 0:54:39] } 26. Nf5 { [%eval -3.58] [%clk 0:31:52] } 26... Rcd8 { [%eval -3.6] [%clk 0:54:25] } 27. g3 { [%eval -3.56] [%clk 0:31:52] } 27... Ng6 { [%eval -3.63] [%clk 0:54:12] } 28. N3d4 { [%eval -3.82] [%clk 0:30:55] } 28... Ne7 { [%eval -3.21] [%clk 0:53:44] } 29. Re2 { [%eval -3.69] [%clk 0:25:12] } 29... Nxf5 { [%eval -3.79] [%clk 0:53:22] } 30. Nxf5 { [%eval -3.71] [%clk 0:25:24] } 30... Re5 { [%eval -3.78] [%clk 0:53:23] } 31. Nd4 { [%eval -3.67] [%clk 0:20:33] } 31... Rde8 { [%eval -3.72] [%clk 0:53:11] } 32. Nb5?! { [%eval -4.94] } { Inaccuracy. Red2 was best. } { [%clk 0:19:46] } 32... Rxe2 { [%eval -4.91] [%clk 0:53:06] } 33. Rxe2 { [%eval -4.8] [%clk 0:20:07] } 33... Rxe2 { [%eval -4.7] [%clk 0:53:33] } 34. Kxe2 { [%eval -4.67] [%clk 0:20:31] } 34... Kf7 { [%eval -4.62] [%clk 0:54:00] } 35. Nd6+ { [%eval -4.82] [%clk 0:20:29] } 35... Ke6 { [%eval -4.69] [%clk 0:54:28] } 36. Nxb7?! { [%eval -6.56] } { Inaccuracy. Nb5 was best. } { [%clk 0:20:39] } 36... Kd7 { [%eval -6.46] [%clk 0:54:52] } 37. a4 { [%eval -7.01] [%clk 0:19:58] } 37... a5 { [%eval -6.89] [%clk 0:55:06] } 38. Kd3 { [%eval -6.9] [%clk 0:19:27] } 38... Kc6 { [%eval -6.7] [%clk 0:55:31] } 39. Nxa5+ { [%eval -6.13] [%clk 0:19:36] } 39... Bxa5 { [%eval -6.92] [%clk 0:55:59] } 40. c4 { [%eval -6.75] [%clk 0:19:45] } 40... dxc4+ { [%eval -6.75] [%clk 0:56:02] } 41. Kxc4 { [%eval -6.61] [%clk 0:20:08] } 41... Kd6 { [%eval -6.21] [%clk 0:56:27] } 42. Kd4 { [%eval -7.34] [%clk 0:20:10] } 42... f5 { [%eval -6.66] [%clk 0:56:37] } 43. h3 { [%eval -7.61] [%clk 0:19:46] } 43... Bb6+ { [%eval -7.46] [%clk 0:56:31] } 44. Kd3 { [%eval -8.14] [%clk 0:19:42] } 44... Ke5 { [%eval -8.23] [%clk 0:57:00] } 45. Kd2 { [%eval -8.07] [%clk 0:19:10] } 45... Bf2 { [%eval -7.55] [%clk 0:57:19] } 46. a5? { [%eval #-21] } { Checkmate is now unavoidable. Ke2 was best. } { [%clk 0:18:31] } 46... Bxg3 { [%eval #-15] [%clk 0:57:46] } 47. Ke2 { [%eval #-14] [%clk 0:18:34] } 47... Kf6?! { [%eval -75.61] } { Lost forced checkmate sequence. Ke4 was best. } { [%clk 0:58:15] } 48. a6?! { [%eval #-16] } { Checkmate is now unavoidable. Ke3 was best. } { [%clk 0:18:43] } 48... Bb8 { [%eval -15.72] [%clk 0:58:44] } 49. h4 { [%clk 0:16:57] } 49... Kg6 { [%clk 0:59:13] } 0-1