Event: Aimchess Rapid Play-In | Champions Chess Tour
Site: -
Date: 2023-06-12
White: Koellner, Ruben Gideon
WhiteTitle: IM
WhiteElo: 2429
Black: Sourath Biswas
BlackTitle: FM
BlackElo: 2305
Result: 1/2-1/2
ECO: A48
Opening: East Indian Defense
Variant: Standard

1. d4 { [%eval 0.0] [%clk 0:09:48] } 1... Nf6 { [%eval 0.28] [%clk 0:10:00] } 2. Nf3 { [%eval 0.12] [%clk 0:09:47] } 2... g6 { [%eval 0.21] [%clk 0:10:01] } 3. Nbd2 { [%eval 0.05] [%clk 0:09:47] } 3... d5 { [%eval 0.07] [%clk 0:10:00] } 4. e3 { [%eval 0.0] [%clk 0:09:49] } 4... Bg7 { [%eval 0.17] [%clk 0:10:01] } 5. b4 { [%eval 0.0] [%clk 0:09:50] } 5... O-O { [%eval 0.04] [%clk 0:10:01] } 6. c4 { [%eval 0.25] [%clk 0:09:51] } 6... a5 { [%eval 0.29] [%clk 0:09:56] } 7. b5 { [%eval 0.25] [%clk 0:09:51] } 7... c5 { [%eval 0.13] [%clk 0:09:58] } 8. dxc5 { [%eval 0.4] [%clk 0:09:52] } 8... Nfd7?? { [%eval 2.16] } { Blunder. Nbd7 was best. } { [%clk 0:09:33] } 9. Ba3 { [%eval 2.12] [%clk 0:09:49] } 9... Bxa1 { [%eval 2.44] [%clk 0:09:24] } 10. Qxa1 { [%eval 2.43] [%clk 0:09:51] } 10... Nf6 { [%eval 2.17] [%clk 0:09:25] } 11. cxd5 { [%eval 2.36] [%clk 0:09:40] } 11... Qxd5 { [%eval 2.67] [%clk 0:09:24] } 12. Bc4 { [%eval 2.84] [%clk 0:09:39] } 12... Qh5 { [%eval 2.82] [%clk 0:09:23] } 13. O-O { [%eval 2.77] [%clk 0:09:37] } 13... Re8 { [%eval 2.9] [%clk 0:08:16] } 14. Ne5 { [%eval 2.72] [%clk 0:09:19] } 14... Be6 { [%eval 3.0] [%clk 0:08:15] } 15. Bxe6 { [%eval 3.36] [%clk 0:09:17] } 15... fxe6 { [%eval 3.39] [%clk 0:08:17] } 16. Ndf3?? { [%eval 1.36] } { Blunder. Qd4 was best. } { [%clk 0:09:16] } 16... Nbd7 { [%eval 1.45] [%clk 0:08:14] } 17. Nxd7 { [%eval 1.33] [%clk 0:09:01] } 17... Nxd7 { [%eval 1.4] [%clk 0:08:14] } 18. Qd4?! { [%eval 0.33] } { Inaccuracy. Rc1 was best. } { [%clk 0:09:02] } 18... Qd5 { [%eval 0.47] [%clk 0:08:13] } 19. Qc3? { [%eval -0.69] } { Mistake. h3 was best. } { [%clk 0:08:45] } 19... Rac8 { [%eval -0.52] [%clk 0:08:07] } 20. e4 { [%eval -0.73] [%clk 0:08:08] } 20... Qxe4 { [%eval -0.61] [%clk 0:07:28] } 21. Rd1 { [%eval -1.03] [%clk 0:07:40] } 21... Nf6 { [%eval -0.71] [%clk 0:07:22] } 22. Qxa5?? { [%eval -2.5] } { Blunder. Re1 was best. } { [%clk 0:07:26] } 22... Ra8 { [%eval -2.73] [%clk 0:07:19] } 23. Qc3 { [%eval -2.61] [%clk 0:07:23] } 23... Qa4 { [%eval -2.5] [%clk 0:06:35] } 24. Rd3 { [%eval -2.39] [%clk 0:07:23] } 24... Red8 { [%eval -2.76] [%clk 0:06:34] } 25. Rxd8+?! { [%eval -4.21] } { Inaccuracy. Bb2 was best. } { [%clk 0:06:45] } 25... Rxd8 { [%eval -4.15] [%clk 0:06:36] } 26. h3 { [%eval -4.19] [%clk 0:06:43] } 26... Qxb5? { [%eval -2.37] } { Mistake. Rd1+ was best. } { [%clk 0:06:32] } 27. Qe5 { [%eval -2.19] [%clk 0:06:41] } 27... Qb1+ { [%eval -2.12] [%clk 0:06:20] } 28. Kh2 { [%eval -2.02] [%clk 0:06:41] } 28... Qxa2?! { [%eval -0.99] } { Inaccuracy. Qe4 was best. } { [%clk 0:06:22] } 29. c6 { [%eval -0.88] [%clk 0:06:28] } 29... Qxa3 { [%eval -0.98] [%clk 0:04:30] } 30. c7 { [%eval -0.98] [%clk 0:06:19] } 30... Re8 { [%eval -1.17] [%clk 0:04:16] } 31. Qxe6+ { [%eval -0.99] [%clk 0:06:20] } 31... Kg7 { [%eval -0.99] [%clk 0:04:18] } 32. c8=Q { [%eval -0.86] [%clk 0:06:15] } 32... Rxc8 { [%eval -1.01] [%clk 0:04:19] } 33. Qxc8 { [%eval -0.95] [%clk 0:06:17] } 33... Qd6+ { [%eval -0.97] [%clk 0:04:21] } 34. g3 { [%eval -0.93] [%clk 0:06:18] } 34... Qc6?! { [%eval 0.0] } { Inaccuracy. Qd5 was best. } { [%clk 0:04:19] } 35. Qxc6 { [%eval 0.0] [%clk 0:06:09] } 35... bxc6 { [%eval 0.0] [%clk 0:04:20] } 36. Ne5?! { [%eval -0.71] } { Inaccuracy. Nd4 was best. } { [%clk 0:06:10] } 36... c5 { [%eval -0.6] [%clk 0:04:19] } 37. Kg2 { [%eval -0.72] [%clk 0:06:09] } 37... e6 { [%eval -0.29] [%clk 0:03:59] } 38. Kf3 { [%eval -0.3] [%clk 0:06:09] } 38... Kf8 { [%eval -0.29] [%clk 0:04:00] } 39. Nd3 { [%eval -0.61] [%clk 0:05:31] } 39... Nd7 { [%eval -0.86] [%clk 0:03:57] } 40. Ke4 { [%eval -0.59] [%clk 0:05:26] } 40... Ke7 { [%eval -0.46] [%clk 0:03:54] } 41. Nf4?! { [%eval -1.05] } { Inaccuracy. Nb2 was best. } { [%clk 0:05:26] } 41... Kd6 { [%eval -0.99] [%clk 0:03:52] } 42. Kd3 { [%eval -1.01] [%clk 0:05:27] } 42... e5 { [%eval -0.83] [%clk 0:03:48] } 43. Ne2 { [%eval -0.83] [%clk 0:05:25] } 43... Nb6 { [%eval -1.03] [%clk 0:03:43] } 44. Nc3 { [%eval -1.38] [%clk 0:05:21] } 44... c4+ { [%eval -1.53] [%clk 0:03:44] } 45. Ke4 { [%eval -1.56] [%clk 0:05:19] } 45... Nd7 { [%eval -1.14] [%clk 0:03:45] } 46. Na4?? { [%eval -5.98] } { Blunder. Nb5+ was best. } { [%clk 0:05:05] } 46... Nf6+? { [%eval -3.66] } { Mistake. Nc5+ was best. } { [%clk 0:03:44] } 47. Ke3 { [%eval -3.28] [%clk 0:05:03] } 47... Kd5?! { [%eval -2.5] } { Inaccuracy. Kc6 was best. } { [%clk 0:03:46] } 48. h4?? { [%eval -5.07] } { Blunder. f4 was best. } { [%clk 0:04:56] } 48... Nd7?? { [%eval -2.15] } { Blunder. Ng4+ was best. } { [%clk 0:03:47] } 49. Nc3+ { [%eval -2.26] [%clk 0:04:54] } 49... Kc5? { [%eval -0.89] } { Mistake. Ke6 was best. } { [%clk 0:03:47] } 50. h5?? { [%eval -3.13] } { Blunder. Ke4 was best. } { [%clk 0:04:34] } 50... Nf6 { [%eval -2.89] [%clk 0:03:35] } 51. hxg6 { [%eval -2.85] [%clk 0:04:33] } 51... hxg6 { [%eval -3.19] [%clk 0:03:37] } 52. Na2 { [%eval -3.35] [%clk 0:04:14] } 52... Kb5?? { [%eval -0.48] } { Blunder. g5 was best. } { [%clk 0:03:18] } 53. f4 { [%eval -0.48] [%clk 0:04:13] } 53... e4 { [%eval 0.0] [%clk 0:03:10] } 54. Kd4 { [%eval 0.0] [%clk 0:03:48] } 54... e3 { [%eval 0.0] [%clk 0:02:49] } 55. Kxe3 { [%eval 0.0] [%clk 0:03:44] } 55... Kc5 { [%eval 0.0] [%clk 0:02:50] } 56. Nc3 { [%eval 0.0] [%clk 0:03:11] } 56... Nd5+ { [%eval 0.0] [%clk 0:02:42] } 57. Nxd5 { [%eval 0.0] [%clk 0:03:12] } 57... Kxd5 { [%eval 0.0] [%clk 0:02:44] } 58. g4 { [%eval 0.0] [%clk 0:03:13] } 58... c3 { [%eval 0.0] [%clk 0:02:18] } 59. Kd3 { [%eval 0.0] [%clk 0:03:14] } 59... c2 { [%eval 0.0] [%clk 0:02:19] } 60. Kxc2 { [%eval 0.0] [%clk 0:03:13] } 60... Ke4 { [%eval 0.0] [%clk 0:02:21] } 61. f5 { [%eval 0.0] [%clk 0:03:13] } 61... gxf5 { [%eval 0.0] [%clk 0:02:23] } 62. g5 { [%eval 0.0] [%clk 0:02:40] } 62... Ke5 { [%clk 0:02:22] } 63. Kd3 { [%clk 0:02:41] } 63... f4 { [%clk 0:02:14] } 64. Ke2 { [%clk 0:02:42] } 64... Kf5 { [%clk 0:02:14] } 65. Kf3 { [%clk 0:02:43] } 65... Kxg5 { [%clk 0:02:16] } 66. Kf2 { [%clk 0:02:45] } 66... Kg4 { [%clk 0:02:15] } 67. Kg2 { [%clk 0:02:46] } 67... f3+ { [%clk 0:02:17] } 68. Kf2 { [%clk 0:02:48] } 68... Kf4 { [%clk 0:02:19] } 69. Kf1 { [%clk 0:02:49] } 69... Ke3 { [%clk 0:02:20] } 70. Ke1 { [%clk 0:02:51] } 70... f2+ { [%clk 0:02:21] } 71. Kf1 { [%clk 0:02:52] } 71... Kf3 { [%clk 0:02:23] } 1/2-1/2