Event: Round 5: Koster, Ramon - Mesropyan, Hayk
Site: https://lichess.org/broadcast/2025-london-chess-classic--fide-open/round-5/3u7ggHST/k1uEnABD
Date: 2025-11-30
White: Koster, Ramon
WhiteTitle: FM
WhiteElo: 2302
Black: Mesropyan, Hayk
BlackElo: 2136
Result: 1-0
ECO: D37
Opening: Queen's Gambit Declined: Harrwitz Attack, Main Line
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:59] } 1... d5 { [%eval 0.18] [%clk 1:25:26] } 2. c4 { [%eval 0.18] [%clk 1:30:57] } 2... e6 { [%eval 0.17] [%clk 1:25:48] } 3. Nf3 { [%eval 0.11] [%clk 1:30:56] } 3... Nf6 { [%eval 0.17] [%clk 1:26:14] } 4. Nc3 { [%eval 0.08] [%clk 1:31:02] } 4... Be7 { [%eval 0.14] [%clk 1:26:38] } 5. Bf4 { [%eval 0.17] [%clk 1:31:01] } 5... O-O { [%eval 0.23] [%clk 1:26:47] } 6. e3 { [%eval 0.25] [%clk 1:31:20] } 6... c5 { [%eval 0.29] [%clk 1:25:48] } 7. dxc5 { [%eval 0.2] [%clk 1:29:38] } 7... Bxc5 { [%eval 0.24] [%clk 1:24:16] } 8. cxd5 { [%eval 0.14] [%clk 1:28:59] } 8... Nxd5 { [%eval 0.22] [%clk 1:24:20] } 9. Nxd5 { [%eval 0.23] [%clk 1:28:53] } 9... exd5 { [%eval 0.16] [%clk 1:24:13] } 10. a3 { [%eval 0.18] [%clk 1:28:48] } 10... Re8 { [%eval 0.38] [%clk 1:22:39] } 11. Bd3 { [%eval 0.36] [%clk 1:28:08] } 11... d4? { [%eval 1.68] } { Mistake. Bb6 was best. } { [%clk 1:15:47] } 12. Bxh7+? { [%eval 0.39] } { Mistake. Ng5 was best. } { [%clk 1:21:57] } 12... Kf8?? { [%eval 2.3] } { Blunder. Kxh7 was best. } { [%clk 0:59:03] } 13. b4 { [%eval 2.35] [%clk 1:17:54] } 13... Bb6 { [%eval 2.35] [%clk 0:55:56] } 14. O-O { [%eval 2.33] [%clk 1:14:36] } 14... Bg4?! { [%eval 3.6] } { Inaccuracy. Nc6 was best. } { [%clk 0:43:23] } 15. h3 { [%eval 3.36] [%clk 1:09:05] } 15... g5?! { [%eval 4.22] } { Inaccuracy. Bxf3 was best. } { [%clk 0:36:44] } 16. hxg4 { [%eval 4.21] [%clk 1:06:20] } 16... gxf4 { [%eval 4.12] [%clk 0:36:49] } 17. exf4 { [%eval 3.93] [%clk 1:05:52] } 17... Qf6 { [%eval 4.55] [%clk 0:37:00] } 18. g3 { [%eval 4.71] [%clk 1:03:58] } 18... Kg7 { [%eval 5.52] [%clk 0:35:41] } 19. Bd3 { [%eval 5.51] [%clk 1:01:40] } 19... Nc6 { [%eval 5.44] [%clk 0:34:26] } 20. Kg2 { [%eval 5.2] [%clk 0:59:46] } 20... a5 { [%eval 5.78] [%clk 0:33:47] } 21. b5 { [%eval 5.8] [%clk 0:53:15] } 21... Ne7 { [%eval 5.48] [%clk 0:34:12] } 22. Rh1 { [%eval 5.78] [%clk 0:45:15] } 22... Rh8 { [%eval 5.65] [%clk 0:33:23] } 23. f5 { [%eval 5.72] [%clk 0:35:39] } 23... Qd6 { [%eval 5.83] [%clk 0:31:32] } 24. g5 { [%eval 5.65] [%clk 0:35:47] } 24... f6 { [%eval 6.35] [%clk 0:30:10] } 25. Re1 { [%eval 5.98] [%clk 0:33:08] } 25... Nd5 { [%eval 6.7] [%clk 0:26:56] } 26. Re6 { [%eval 6.21] [%clk 0:30:10] } 26... Qc7 { [%eval 6.91] [%clk 0:26:01] } 27. Rc1 { [%eval 6.63] [%clk 0:21:38] } 27... Bc5 { [%eval 7.17] [%clk 0:22:34] } 28. gxf6+ { [%eval 7.71] [%clk 0:17:19] } 28... Kf8 { [%eval 8.17] [%clk 0:22:28] } 29. Ne5 { [%eval 8.32] [%clk 0:16:12] } 29... Qh7 { [%eval 8.56] [%clk 0:18:53] } 30. Ng6+ { [%eval 8.36] [%clk 0:13:00] } 30... Kf7 { [%eval 8.81] [%clk 0:19:19] } 31. Ne5+ { [%eval 8.43] [%clk 0:13:12] } 31... Kf8 { [%eval 8.38] [%clk 0:19:41] } 32. Qg4 { [%eval 8.12] [%clk 0:13:08] } 32... Qh2+ { [%eval 9.72] [%clk 0:18:05] } 33. Kf3 { [%eval 9.59] [%clk 0:13:20] } 33... Rg8? { [%eval #9] } { Checkmate is now unavoidable. Qh7 was best. } { [%clk 0:18:10] } 34. Nd7+ { [%eval #10] [%clk 0:12:43] } 34... Kf7 { [%eval 15.44] [%clk 0:18:30] } 35. Ne5+ { [%eval 12.31] [%clk 0:13:06] } 35... Kf8 { [%eval #9] [%clk 0:18:57] } 36. Ng6+ { [%eval #8] [%clk 0:12:31] } 36... Kf7 { [%eval #8] [%clk 0:19:09] } 37. Rxc5 { [%eval #7] [%clk 0:11:49] } 37... Qh1+ { [%eval #7] [%clk 0:19:08] } 38. Ke2 { [%eval #6] [%clk 0:12:12] } 38... Nc3+ { [%eval #5] [%clk 0:18:25] } 39. Rxc3 { [%eval #4] [%clk 0:08:10] } 39... dxc3 { [%eval #3] [%clk 0:18:32] } 40. Re7+ { [%eval #5] [%clk 0:07:56] } 40... Kxf6 { [%eval #5] [%clk 0:18:52] } 41. Qd4+ { [%eval #4] [%clk 0:08:15] } 41... Kg5 { [%eval #4] [%clk 0:19:12] } 42. Qf4+ { [%eval #3] [%clk 0:08:28] } 42... Kf6 { [%eval #3] [%clk 0:19:37] } 43. Qe5+ { [%eval #3] [%clk 0:06:59] } 43... Kg5 { [%eval #3] [%clk 0:19:59] } 44. f6+ { [%eval #2] [%clk 0:07:05] } 44... Kh6 { [%eval #2] [%clk 0:20:13] } 45. Qf4+ { [%eval #1] [%clk 0:07:26] } 1-0