Event: Round 2: Kalavannan, Koby - Vortmeier, Jan
Site: https://lichess.org/broadcast/2025-london-chess-classic--fide-open/round-2/UtLEYUMf/VhF5yRDx
Date: 2025-11-28
White: Kalavannan, Koby
WhiteTitle: FM
WhiteElo: 2275
Black: Vortmeier, Jan
BlackElo: 2152
Result: 0-1
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:10] } 1... Nf6 { [%eval 0.19] [%clk 1:23:59] } 2. c4 { [%eval 0.18] [%clk 1:30:23] } 2... g6 { [%eval 0.28] [%clk 1:24:09] } 3. Nc3 { [%eval 0.18] [%clk 1:30:36] } 3... Bg7 { [%eval 0.46] [%clk 1:24:28] } 4. e4 { [%eval 0.4] [%clk 1:30:50] } 4... d6 { [%eval 0.55] [%clk 1:24:47] } 5. Be2 { [%eval 0.51] [%clk 1:31:05] } 5... O-O { [%eval 0.47] [%clk 1:25:01] } 6. Be3 { [%eval 0.5] [%clk 1:31:07] } 6... c5 { [%eval 0.56] [%clk 1:24:20] } 7. dxc5 { [%eval 0.18] [%clk 1:30:42] } 7... Qa5 { [%eval 0.32] [%clk 1:24:41] } 8. Bd2 { [%eval 0.31] [%clk 1:30:40] } 8... dxc5 { [%eval 0.38] [%clk 1:24:25] } 9. e5 { [%eval 0.48] [%clk 1:24:14] } 9... Nfd7 { [%eval 0.38] [%clk 1:24:46] } 10. f4 { [%eval 0.43] [%clk 1:24:13] } 10... Nc6 { [%eval 0.49] [%clk 1:24:42] } 11. Nf3 { [%eval 0.57] [%clk 1:24:26] } 11... f6 { [%eval 0.56] [%clk 1:24:36] } 12. exf6?! { [%eval -0.07] } { Inaccuracy. e6 was best. } { [%clk 1:04:41] } 12... Nxf6 { [%eval -0.13] [%clk 1:24:58] } 13. O-O { [%eval -0.29] [%clk 1:03:16] } 13... Bf5 { [%eval 0.06] [%clk 1:11:50] } 14. Kh1 { [%eval -0.13] [%clk 0:56:40] } 14... Rad8 { [%eval -0.22] [%clk 1:01:55] } 15. Na4?! { [%eval -1.3] } { Inaccuracy. Nd5 was best. } { [%clk 0:52:01] } 15... Qc7 { [%eval -1.47] [%clk 0:59:58] } 16. Nxc5 { [%eval -1.12] [%clk 0:52:08] } 16... b6?! { [%eval -0.45] } { Inaccuracy. e5 was best. } { [%clk 0:45:14] } 17. Nb3? { [%eval -1.81] } { Mistake. Na6 was best. } { [%clk 0:51:03] } 17... Ne4 { [%eval -1.67] [%clk 0:44:00] } 18. Qc1 { [%eval -1.74] [%clk 0:48:34] } 18... Nxd2 { [%eval -1.73] [%clk 0:44:01] } 19. Nfxd2?! { [%eval -2.67] } { Inaccuracy. Nbxd2 was best. } { [%clk 0:48:31] } 19... Nb4 { [%eval -2.89] [%clk 0:42:41] } 20. c5 { [%eval -3.03] [%clk 0:38:21] } 20... Nd3?? { [%eval -1.01] } { Blunder. Nc2 was best. } { [%clk 0:32:14] } 21. Bxd3 { [%eval -1.14] [%clk 0:35:20] } 21... Bxd3 { [%eval -1.14] [%clk 0:32:37] } 22. Rf3?! { [%eval -1.81] } { Inaccuracy. Re1 was best. } { [%clk 0:30:31] } 22... b5 { [%eval -1.47] [%clk 0:26:33] } 23. Qe1?! { [%eval -2.39] } { Inaccuracy. a4 was best. } { [%clk 0:27:40] } 23... Bxb2 { [%eval -2.21] [%clk 0:24:17] } 24. Qe6+ { [%eval -2.33] [%clk 0:27:33] } 24... Rf7?! { [%eval -1.56] } { Inaccuracy. Kh8 was best. } { [%clk 0:23:06] } 25. Re1 { [%eval -1.64] [%clk 0:26:56] } 25... Bc3 { [%eval -1.43] [%clk 0:11:28] } 26. Rc1 { [%eval -1.5] [%clk 0:25:56] } 26... Bf5 { [%eval -1.53] [%clk 0:11:33] } 27. Qe3 { [%eval -1.44] [%clk 0:24:43] } 27... Bb2 { [%eval -1.18] [%clk 0:09:06] } 28. Rcf1 { [%eval -1.47] [%clk 0:22:05] } 28... a5 { [%eval -1.58] [%clk 0:08:53] } 29. Ne4 { [%eval -1.51] [%clk 0:17:07] } 29... Bxe4 { [%eval -1.38] [%clk 0:08:04] } 30. Qxe4 { [%eval -1.26] [%clk 0:17:36] } 30... a4 { [%eval -1.27] [%clk 0:08:15] } 31. Nc1 { [%eval -1.32] [%clk 0:14:45] } 31... Bxc1 { [%eval -1.32] [%clk 0:07:30] } 32. Rxc1 { [%eval -1.47] [%clk 0:15:05] } 32... Qxc5 { [%eval -1.34] [%clk 0:07:43] } 33. Rff1 { [%eval -1.18] [%clk 0:13:12] } 33... Qd4 { [%eval -0.98] [%clk 0:06:26] } 34. Qb1 { [%eval -0.93] [%clk 0:09:09] } 34... Rf5 { [%eval -1.15] [%clk 0:04:56] } 35. Rfd1 { [%eval -1.2] [%clk 0:04:33] } 35... Qb6 { [%eval -1.21] [%clk 0:05:18] } 36. Qe4?! { [%eval -2.08] } { Inaccuracy. Re1 was best. } { [%clk 0:04:59] } 36... Kf7? { [%eval -0.53] } { Mistake. Rxd1+ was best. } { [%clk 0:03:03] } 37. g3?? { [%eval -4.18] } { Blunder. Re1 was best. } { [%clk 0:02:27] } 37... Rxd1+ { [%eval -3.99] [%clk 0:02:52] } 38. Rxd1 { [%eval -3.94] [%clk 0:02:57] } 38... Qe6 { [%eval -3.68] [%clk 0:03:00] } 39. Qc2 { [%eval -4.14] [%clk 0:01:51] } 39... Rd5 { [%eval -3.98] [%clk 0:02:16] } 40. Rf1 { [%eval -3.87] [%clk 0:01:24] } 40... Qf5 { [%eval -3.71] [%clk 0:00:33] } 41. Qe2 { [%eval -4.02] [%clk 0:00:34] } 41... Rd3 { [%eval -4.1] [%clk 0:30:00] } 42. Re1 { [%eval -3.95] [%clk 0:28:26] } 42... Qd5+ { [%eval -3.95] [%clk 0:29:56] } 43. Kg1 { [%eval -3.82] [%clk 0:28:48] } 43... e6 { [%eval -3.61] [%clk 0:28:26] } 44. f5 { [%eval -3.59] [%clk 0:28:05] } 44... Rd2 { [%eval -3.17] [%clk 0:21:44] } 45. fxe6+? { [%eval -5.12] } { Mistake. Qxe6+ was best. } { [%clk 0:25:10] } 45... Ke7 { [%eval -5.01] [%clk 0:22:07] } 46. Qf1 { [%eval -4.93] [%clk 0:25:33] } 46... Qc5+ { [%eval -4.5] [%clk 0:22:19] } 47. Kh1 { [%eval -4.12] [%clk 0:26:02] } 47... Qf5 { [%eval -4.19] [%clk 0:19:42] } 48. Qxf5 { [%eval -3.91] [%clk 0:22:48] } 48... gxf5 { [%eval -3.73] [%clk 0:20:06] } 49. Rb1 { [%eval -3.66] [%clk 0:20:43] } 49... Kxe6 { [%eval -4.11] [%clk 0:20:13] } 50. Rxb5 { [%eval -4.49] [%clk 0:20:59] } 50... Rxa2 { [%eval -3.99] [%clk 0:19:52] } 51. Ra5?! { [%eval -5.04] } { Inaccuracy. Rb6+ was best. } { [%clk 0:20:34] } 51... a3 { [%eval -4.93] [%clk 0:19:08] } 52. Kg1 { [%eval -4.96] [%clk 0:20:12] } 52... Kd6 { [%eval -4.8] [%clk 0:19:12] } 53. Kf1 { [%eval -5.0] [%clk 0:17:27] } 53... Kc6 { [%eval -4.83] [%clk 0:17:56] } 54. Kg1 { [%eval -4.73] [%clk 0:17:36] } 54... Kb6 { [%eval -4.93] [%clk 0:18:16] } 55. Ra4 { [%eval -5.36] [%clk 0:17:22] } 55... Kb5 { [%eval -5.33] [%clk 0:18:28] } 56. Ra8 { [%eval -5.35] [%clk 0:17:35] } 56... Kb4 { [%eval -5.27] [%clk 0:18:01] } 57. Rb8+ { [%eval -5.63] [%clk 0:18:03] } 57... Kc3 { [%eval -5.42] [%clk 0:17:24] } 58. Ra8 { [%eval -5.35] [%clk 0:18:18] } 58... Kb2 { [%eval -5.03] [%clk 0:15:46] } 59. Rb8+ { [%eval -5.16] [%clk 0:17:19] } 59... Kc1 { [%eval -5.19] [%clk 0:16:01] } 60. Ra8 { [%eval -5.27] [%clk 0:17:26] } 60... Kb1 { [%eval -4.62] [%clk 0:15:30] } 61. Kf1 { [%eval -5.1] [%clk 0:11:10] } 61... Ra1 { [%eval -5.03] [%clk 0:15:13] } 62. Kg2 { [%eval -5.09] [%clk 0:08:22] } 62... Ka2 { [%eval -4.89] [%clk 0:14:38] } 63. Kh3 { [%eval -5.17] [%clk 0:06:00] } 63... Rb1 { [%eval -5.08] [%clk 0:12:46] } 64. Re8 { [%eval -5.22] [%clk 0:03:31] } 64... Rb3 { [%eval -4.87] [%clk 0:10:42] } 65. Kh4 { [%eval -4.87] [%clk 0:03:16] } 65... Kb2 { [%eval -5.2] [%clk 0:10:54] } 66. Re2+ { [%eval -5.12] [%clk 0:02:23] } 66... Ka1 { [%eval -4.99] [%clk 0:11:16] } 67. Re1+ { [%eval -5.74] [%clk 0:02:21] } 67... Rb1 { [%eval -5.28] [%clk 0:11:38] } 68. Re2 { [%eval -6.26] [%clk 0:02:45] } 68... a2 { [%eval -6.17] [%clk 0:11:48] } 69. Kg5 { [%eval -6.49] [%clk 0:02:00] } 69... Rh1 { [%eval -7.12] [%clk 0:10:47] } 70. Kxf5 { [%eval -8.44] [%clk 0:00:48] } 70... Kb1 { [%eval -7.73] [%clk 0:11:10] } 71. Rxa2?! { [%eval -74.94] } { Inaccuracy. Re4 was best. } { [%clk 0:01:09] } 71... Kxa2 { [%eval -74.94] [%clk 0:11:35] } 72. h4 { [%eval -80.36] [%clk 0:01:36] } 72... Kb3 { [%eval -83.08] [%clk 0:11:47] } 73. Kg5 { [%eval -83.08] [%clk 0:01:30] } 73... Kc4 { [%eval -80.23] [%clk 0:12:05] } 74. Kh6?! { [%eval #-20] } { Checkmate is now unavoidable. Kf4 was best. } { [%clk 0:01:56] } 74... Rh3 { [%eval -72.53] [%clk 0:11:54] } 75. Kxh7 { [%eval -79.59] [%clk 0:02:16] } 75... Kd5 { [%eval -82.44] [%clk 0:11:54] } 76. Kg6 { [%eval -76.92] [%clk 0:00:40] } 76... Ke6 { [%eval #-24] [%clk 0:12:18] } 77. h5 { [%eval #-6] [%clk 0:00:49] } 77... Rxg3+ { [%eval #-5] [%clk 0:12:41] } 78. Kh7 { [%eval #-5] [%clk 0:00:45] } 78... Kf6 { [%eval #-4] [%clk 0:13:03] } 79. h6 { [%eval #-4] [%clk 0:01:01] } 79... Rh3 { [%eval #-3] [%clk 0:13:27] } 80. Kg8 { [%eval #-2] [%clk 0:01:17] } 80... Rxh6 { [%eval #-1] [%clk 0:13:51] } 81. Kf8 { [%eval #-1] [%clk 0:01:44] } 81... Rh8# { [%clk 0:13:25] } 0-1