Event: Round 3: Vaidyanathan, Adithya - Kalavannan, Koby
Site: https://lichess.org/broadcast/2025-british-chess-championships--championship/round-3/6Wcmxa29/BbG9ntN9
White: Vaidyanathan, Adithya
WhiteElo: 2115
Black: Kalavannan, Koby
BlackTitle: FM
BlackElo: 2323
Result: 1/2-1/2
ECO: E12
Opening: Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... Nf6 { [%eval 0.19] [%clk 1:29:00] } 2. c4 { [%eval 0.18] [%clk 1:31:20] } 2... b6 { [%eval 0.41] [%clk 1:29:17] } 3. Nc3 { [%eval 0.39] [%clk 1:31:39] } 3... Bb7 { [%eval 0.57] [%clk 1:29:35] } 4. Nf3 { [%eval 0.13] [%clk 1:32:02] } 4... e6 { [%eval 0.21] [%clk 1:29:47] } 5. a3 { [%eval 0.14] [%clk 1:32:03] } 5... Be7 { [%eval 0.54] [%clk 1:28:15] } 6. Qc2 { [%eval 0.14] [%clk 1:31:15] } 6... c5 { [%eval 0.27] [%clk 1:15:45] } 7. dxc5 { [%eval 0.0] [%clk 1:21:26] } 7... bxc5 { [%eval 0.02] [%clk 1:15:34] } 8. Bg5 { [%eval -0.24] [%clk 1:21:30] } 8... d5 { [%eval -0.05] [%clk 1:04:29] } 9. cxd5 { [%eval -0.09] [%clk 1:21:09] } 9... exd5 { [%eval 0.0] [%clk 1:04:52] } 10. e3 { [%eval 0.06] [%clk 1:18:27] } 10... O-O { [%eval 0.08] [%clk 1:04:26] } 11. Be2 { [%eval -0.03] [%clk 1:18:19] } 11... Nbd7 { [%eval 0.02] [%clk 0:57:43] } 12. O-O { [%eval -0.02] [%clk 1:18:29] } 12... h6 { [%eval 0.0] [%clk 0:53:15] } 13. Bh4 { [%eval 0.0] [%clk 1:18:04] } 13... Qb6 { [%eval -0.01] [%clk 0:45:16] } 14. Rfd1 { [%eval -0.06] [%clk 1:17:04] } 14... Rfd8 { [%eval 0.15] [%clk 0:45:15] } 15. Rac1 { [%eval -0.07] [%clk 1:09:52] } 15... Rac8 { [%eval -0.11] [%clk 0:45:36] } 16. Ne1?! { [%eval -1.13] } { Inaccuracy. Rd2 was best. } { [%clk 1:10:08] } 16... Qe6?! { [%eval -0.16] } { Inaccuracy. d4 was best. } { [%clk 0:36:43] } 17. Bg3 { [%eval -0.19] [%clk 1:02:03] } 17... Ne5 { [%eval -0.13] [%clk 0:33:58] } 18. Nd3? { [%eval -1.69] } { Mistake. Qa4 was best. } { [%clk 1:01:18] } 18... Nxd3 { [%eval -1.67] [%clk 0:31:20] } 19. Bxd3 { [%eval -1.73] [%clk 1:01:20] } 19... d4 { [%eval -1.45] [%clk 0:31:43] } 20. Nb1 { [%eval -2.05] [%clk 0:46:34] } 20... dxe3?! { [%eval -1.32] } { Inaccuracy. Ne4 was best. } { [%clk 0:30:16] } 21. f3? { [%eval -2.96] } { Mistake. Bf5 was best. } { [%clk 0:25:44] } 21... c4 { [%eval -3.0] [%clk 0:24:42] } 22. Bf5 { [%eval -2.99] [%clk 0:21:32] } 22... Qb6 { [%eval -2.82] [%clk 0:24:09] } 23. Kf1? { [%eval -4.53] } { Mistake. Kh1 was best. } { [%clk 0:20:25] } 23... c3 { [%eval -4.48] [%clk 0:19:20] } 24. Nxc3 { [%eval -4.55] [%clk 0:10:08] } 24... Rd2?! { [%eval -3.24] } { Inaccuracy. Ba6+ was best. } { [%clk 0:18:41] } 25. Rxd2 { [%eval -3.07] [%clk 0:07:05] } 25... exd2 { [%eval -2.98] [%clk 0:19:09] } 26. Qxd2?! { [%eval -4.21] } { Inaccuracy. Rd1 was best. } { [%clk 0:07:24] } 26... Ba6+ { [%eval -4.13] [%clk 0:12:21] } 27. Ne2 { [%eval -3.66] [%clk 0:07:43] } 27... Rxc1+ { [%eval -3.33] [%clk 0:09:04] } 28. Qxc1 { [%eval -2.97] [%clk 0:08:05] } 28... Nd5?! { [%eval -1.95] } { Inaccuracy. Qb5 was best. } { [%clk 0:07:17] } 29. Be4 { [%eval -1.97] [%clk 0:01:58] } 29... Ne3+ { [%eval -1.81] [%clk 0:05:18] } 30. Kg1 { [%eval -1.78] [%clk 0:01:15] } 30... Nd1+ { [%eval -1.85] [%clk 0:03:57] } 31. Kf1 { [%eval -1.94] [%clk 0:01:40] } 31... Ne3+ { [%eval -1.9] [%clk 0:03:52] } 32. Kg1 { [%eval -1.9] [%clk 0:02:06] } 32... Bxe2?? { [%eval 0.26] } { Blunder. Nd1+ was best. } { [%clk 0:03:45] } 33. Bf2 { [%eval 0.34] [%clk 0:02:31] } 33... Qd4? { [%eval 2.04] } { Mistake. Bg5 was best. } { [%clk 0:00:36] } 34. Bxe3 { [%eval 1.88] [%clk 0:02:34] } 34... Qd7 { [%eval 1.86] [%clk 0:00:56] } 35. Qd2 { [%eval 1.47] [%clk 0:01:22] } 35... Qb5?? { [%eval 4.06] } { Blunder. Qxd2 was best. } { [%clk 0:01:06] } 36. Kf2? { [%eval 1.95] } { Mistake. a4 was best. } { [%clk 0:00:43] } 36... Bc4 { [%eval 2.1] [%clk 0:01:35] } 37. Bxa7 { [%eval 1.97] [%clk 0:00:57] } 37... f5 { [%eval 1.86] [%clk 0:01:18] } 38. Bb1 { [%eval 1.31] [%clk 0:00:47] } 38... Bg5?? { [%eval 3.31] } { Blunder. Bxa3 was best. } { [%clk 0:00:37] } 39. Be3?? { [%eval 0.0] } { Blunder. Qb4 was best. } { [%clk 0:00:36] } 39... Bxe3+ { [%eval 0.0] [%clk 0:00:33] } 40. Kxe3 { [%eval 0.0] [%clk 0:01:00] } 40... f4+ { [%eval 0.0] [%clk 0:00:33] } 41. Ke4 { [%eval 0.0] [%clk 0:21:50] } 41... Be6 { [%eval 0.0] [%clk 0:23:19] } 42. Qd8+ { [%eval 0.0] [%clk 0:19:20] } 42... Kf7 { [%eval 0.0] [%clk 0:23:46] } 43. Qc7+ { [%eval 0.0] [%clk 0:19:39] } 43... Kg8 { [%eval 0.0] [%clk 0:24:11] } 44. Qd8+ { [%eval 0.0] [%clk 0:09:38] } 44... Kf7 { [%eval 0.0] [%clk 0:24:39] } 45. Qc7+ { [%eval 0.0] [%clk 0:05:23] } 1/2-1/2