Event: Round 7: Siva Mahadevan - D`Costa, Lorin
Site: https://lichess.org/broadcast/2025-uk-open-blitz-final--open/round-7/uU54hTV3/YwKDwUAe
Date: 2025-11-16
White: Siva Mahadevan
WhiteTitle: IM
WhiteElo: 2365
Black: D`Costa, Lorin
BlackTitle: IM
BlackElo: 2349
Result: 0-1
ECO: B41
Opening: Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation
Variant: Standard
TimeControl: 3+2

1. e4 { [%eval 0.18] [%clk 0:03:03] } 1... c5 { [%eval 0.25] [%clk 0:03:03] } 2. Nf3 { [%eval 0.2] [%clk 0:03:04] } 2... e6 { [%eval 0.28] [%clk 0:03:05] } 3. d4 { [%eval 0.4] [%clk 0:03:04] } 3... cxd4 { [%eval 0.29] [%clk 0:03:06] } 4. Nxd4 { [%eval 0.33] [%clk 0:03:04] } 4... a6 { [%eval 0.42] [%clk 0:03:07] } 5. c4 { [%eval 0.21] [%clk 0:03:02] } 5... Nf6 { [%eval 0.38] [%clk 0:03:06] } 6. Nc3 { [%eval 0.25] [%clk 0:03:02] } 6... Qc7 { [%eval 0.5] [%clk 0:03:07] } 7. a3 { [%eval 0.45] [%clk 0:03:01] } 7... b6 { [%eval 0.56] [%clk 0:03:06] } 8. Be3 { [%eval 0.57] [%clk 0:02:56] } 8... Bb7 { [%eval 0.59] [%clk 0:03:07] } 9. f3 { [%eval 0.68] [%clk 0:02:55] } 9... d6 { [%eval 0.9] [%clk 0:03:05] } 10. Be2 { [%eval 0.71] [%clk 0:02:54] } 10... Be7 { [%eval 0.69] [%clk 0:03:05] } 11. Qd2 { [%eval 0.75] [%clk 0:02:54] } 11... Nbd7 { [%eval 0.94] [%clk 0:03:05] } 12. O-O { [%eval 0.5] [%clk 0:02:54] } 12... O-O { [%eval 0.49] [%clk 0:03:06] } 13. Rac1 { [%eval 0.5] [%clk 0:02:46] } 13... Rac8 { [%eval 0.49] [%clk 0:03:06] } 14. Rfd1 { [%eval 0.52] [%clk 0:02:39] } 14... Qb8 { [%eval 0.51] [%clk 0:03:07] } 15. Bf1 { [%eval 0.46] [%clk 0:02:32] } 15... Bd8 { [%eval 0.54] [%clk 0:02:56] } 16. Qf2 { [%eval 0.53] [%clk 0:02:22] } 16... Bc7 { [%eval 0.57] [%clk 0:02:49] } 17. g4 { [%eval 0.49] [%clk 0:02:22] } 17... g6 { [%eval 0.93] [%clk 0:01:48] } 18. g5 { [%eval 0.48] [%clk 0:02:03] } 18... Nh5 { [%eval 0.43] [%clk 0:01:49] } 19. Bh3 { [%eval 0.51] [%clk 0:02:03] } 19... Rfe8 { [%eval 0.53] [%clk 0:01:45] } 20. Nde2 { [%eval 0.54] [%clk 0:01:47] } 20... Ba8 { [%eval 0.72] [%clk 0:01:25] } 21. a4 { [%eval 0.54] [%clk 0:01:37] } 21... Ng7 { [%eval 0.62] [%clk 0:01:01] } 22. Ng3 { [%eval 0.51] [%clk 0:01:18] } 22... Nc5?! { [%eval 1.1] } { Inaccuracy. Bd8 was best. } { [%clk 0:00:53] } 23. Rc2 { [%eval 0.82] [%clk 0:01:03] } 23... Bc6 { [%eval 0.92] [%clk 0:00:49] } 24. Ra1? { [%eval -0.27] } { Mistake. f4 was best. } { [%clk 0:00:52] } 24... b5? { [%eval 1.11] } { Mistake. Rcd8 was best. } { [%clk 0:00:31] } 25. cxb5 { [%eval 1.3] [%clk 0:00:44] } 25... axb5 { [%eval 1.22] [%clk 0:00:33] } 26. axb5 { [%eval 1.4] [%clk 0:00:36] } 26... Bxb5 { [%eval 1.46] [%clk 0:00:32] } 27. Nxb5 { [%eval 1.59] [%clk 0:00:35] } 27... Qxb5 { [%eval 1.37] [%clk 0:00:32] } 28. Bf1 { [%eval 1.49] [%clk 0:00:35] } 28... Qb4?! { [%eval 2.56] } { Inaccuracy. Qb8 was best. } { [%clk 0:00:23] } 29. Rc4? { [%eval 1.29] } { Mistake. e5 was best. } { [%clk 0:00:36] } 29... Qb3?! { [%eval 2.01] } { Inaccuracy. Qb8 was best. } { [%clk 0:00:18] } 30. Ra3 { [%eval 1.93] [%clk 0:00:37] } 30... Qb8 { [%eval 1.76] [%clk 0:00:18] } 31. b4? { [%eval 0.26] } { Mistake. Qd2 was best. } { [%clk 0:00:37] } 31... Nd7 { [%eval 0.31] [%clk 0:00:16] } 32. Rac3?? { [%eval -1.78] } { Blunder. b5 was best. } { [%clk 0:00:37] } 32... Ne5 { [%eval -1.62] [%clk 0:00:09] } 33. Rd4 { [%eval -1.57] [%clk 0:00:34] } 33... Bb6 { [%eval -1.6] [%clk 0:00:09] } 34. Rxc8 { [%eval -1.68] [%clk 0:00:32] } 34... Rxc8 { [%eval -1.68] [%clk 0:00:10] } 35. b5?? { [%eval -4.14] } { Blunder. Rd1 was best. } { [%clk 0:00:14] } 35... Rc3 { [%eval -4.02] [%clk 0:00:06] } 36. Ne2 { [%eval -4.05] [%clk 0:00:10] } 36... Rc2?? { [%eval -0.99] } { Blunder. Ra3 was best. } { [%clk 0:00:03] } 37. Rd1 { [%eval -0.92] [%clk 0:00:09] } 37... Bxe3?! { [%eval 0.0] } { Inaccuracy. Bd8 was best. } { [%clk 0:00:04] } 38. Qxe3 { [%eval 0.01] [%clk 0:00:09] } 38... Ne8 { [%eval 0.39] [%clk 0:00:04] } 39. Nd4 { [%eval 0.31] [%clk 0:00:10] } 39... Rc5 { [%eval 0.28] [%clk 0:00:04] } 40. f4 { [%eval 0.15] [%clk 0:00:10] } 40... Nd7 { [%eval 0.58] [%clk 0:00:04] } 41. Nc6 { [%eval 0.16] [%clk 0:00:11] } 41... Qb6 { [%eval 0.25] [%clk 0:00:04] } 42. e5?? { [%eval -4.34] } { Blunder. Qf2 was best. } { [%clk 0:00:12] } 42... Rxc6 { [%eval -4.22] [%clk 0:00:05] } 43. Qxb6 { [%eval -4.24] [%clk 0:00:11] } 43... Rxb6 { [%eval -4.33] [%clk 0:00:06] } 44. exd6 { [%eval -4.67] [%clk 0:00:07] } 44... Rxd6 { [%eval -4.44] [%clk 0:00:06] } 45. Rc1 { [%eval -4.37] [%clk 0:00:08] } 45... Nb6 { [%eval -4.45] [%clk 0:00:06] } 46. Kf2 { [%eval -4.66] [%clk 0:00:08] } 46... Kf8 { [%eval -4.57] [%clk 0:00:07] } 47. Bg2 { [%eval -4.98] [%clk 0:00:08] } 47... Ke7 { [%eval -4.75] [%clk 0:00:08] } 48. Bc6 { [%eval -4.76] [%clk 0:00:08] } 48... Nc7 { [%eval -4.58] [%clk 0:00:05] } 49. Ra1 { [%eval -4.68] [%clk 0:00:10] } 49... Rd8 { [%eval -4.79] [%clk 0:00:04] } 50. Ra7 { [%eval -4.73] [%clk 0:00:10] } 50... Kd6 { [%eval -4.56] [%clk 0:00:06] } 51. Rb7 { [%eval -4.39] [%clk 0:00:11] } 51... Nbd5 { [%eval -4.17] [%clk 0:00:05] } 52. Bxd5 { [%eval -4.33] [%clk 0:00:07] } 52... exd5 { [%eval -4.67] [%clk 0:00:05] } 53. b6 { [%eval -4.46] [%clk 0:00:09] } 53... Ne6 { [%eval -4.54] [%clk 0:00:04] } 54. Rxf7 { [%eval -4.35] [%clk 0:00:09] } 54... Rd7? { [%eval -2.61] } { Mistake. d4 was best. } { [%clk 0:00:05] } 55. b7 { [%eval -2.65] [%clk 0:00:09] } 55... Rd8 { [%eval -2.19] [%clk 0:00:03] } 56. Ke3? { [%eval -3.88] } { Mistake. h4 was best. } { [%clk 0:00:06] } 56... Rb8?! { [%eval -3.01] } { Inaccuracy. d4+ was best. } { [%clk 0:00:03] } 57. Rxh7 { [%eval -3.08] [%clk 0:00:07] } 57... Nc5?? { [%eval -0.58] } { Blunder. Re8 was best. } { [%clk 0:00:04] } 58. Rg7?? { [%eval -3.92] } { Blunder. Rh6 was best. } { [%clk 0:00:08] } 58... Rxb7?? { [%eval 0.0] } { Blunder. d4+ was best. } { [%clk 0:00:05] } 59. Rxg6+ { [%eval -0.02] [%clk 0:00:09] } 59... Kc7 { [%eval 0.0] [%clk 0:00:04] } 60. Kd4 { [%eval 0.0] [%clk 0:00:10] } 60... Nd7 { [%eval 0.0] [%clk 0:00:04] } 61. Kxd5 { [%eval 0.0] [%clk 0:00:11] } 61... Rb5+ { [%eval 0.09] [%clk 0:00:05] } 62. Ke4 { [%eval 0.43] [%clk 0:00:12] } 62... Rb4+? { [%eval 1.7] } { Mistake. Nc5+ was best. } { [%clk 0:00:06] } 63. Kf3 { [%eval 1.3] [%clk 0:00:13] } 63... Kd8?! { [%eval 2.03] } { Inaccuracy. Nf8 was best. } { [%clk 0:00:06] } 64. h4? { [%eval 0.71] } { Mistake. Re6 was best. } { [%clk 0:00:14] } 64... Ke7?? { [%eval 2.82] } { Blunder. Nf8 was best. } { [%clk 0:00:06] } 65. h5 { [%eval 2.96] [%clk 0:00:15] } 65... Nf8 { [%eval 3.45] [%clk 0:00:08] } 66. Ra6?? { [%eval 0.0] } { Blunder. Rg7+ was best. } { [%clk 0:00:16] } 66... Ne6 { [%eval 0.0] [%clk 0:00:08] } 67. Ra7+ { [%eval 0.0] [%clk 0:00:14] } 67... Kd6?? { [%eval 2.43] } { Blunder. Kf8 was best. } { [%clk 0:00:09] } 68. Ra6+?? { [%eval 0.0] } { Blunder. Rf7 was best. } { [%clk 0:00:15] } 68... Ke7 { [%eval 0.0] [%clk 0:00:11] } 69. h6 { [%eval 0.0] [%clk 0:00:08] } 69... Rxf4+ { [%eval 0.0] [%clk 0:00:10] } 70. Kg3 { [%eval 0.0] [%clk 0:00:10] } 70... Rf5 { [%eval 0.0] [%clk 0:00:08] } 71. Ra7+ { [%eval 0.0] [%clk 0:00:04] } 71... Kd6 { [%eval 0.0] [%clk 0:00:06] } 0-1