Event: Open
Site: Warsaw, Poland
Date: 2021-12-30
White: Jakubowski, Krzysztof
WhiteElo: 2373
Black: Costachi, Mihnea
BlackElo: 2482
Result: 0-1
ECO: A48
Opening: London System
Variant: Standard

1. d4 { [%eval 0.3] [%clk 0:03:02] } 1... Nf6 { [%eval 0.22] [%clk 0:03:03] } 2. Nf3 { [%eval 0.12] [%clk 0:03:02] } 2... g6 { [%eval 0.21] [%clk 0:03:04] } 3. Bf4 { [%eval 0.0] [%clk 0:03:02] } 3... Bg7 { [%eval 0.19] [%clk 0:03:05] } 4. e3 { [%eval 0.13] [%clk 0:03:02] } 4... O-O { [%eval 0.12] [%clk 0:03:06] } 5. Be2 { [%eval 0.0] [%clk 0:03:03] } 5... d6 { [%eval 0.0] [%clk 0:03:07] } 6. h3 { [%eval 0.01] [%clk 0:03:02] } 6... b6 { [%eval 0.25] [%clk 0:03:08] } 7. O-O { [%eval 0.18] [%clk 0:03:02] } 7... Bb7 { [%eval 0.25] [%clk 0:03:09] } 8. a4 { [%eval 0.21] [%clk 0:03:02] } 8... a5 { [%eval 0.23] [%clk 0:03:10] } 9. Na3 { [%eval 0.0] [%clk 0:03:01] } 9... Ne4 { [%eval 0.0] [%clk 0:03:08] } 10. Bh2 { [%eval 0.0] [%clk 0:02:56] } 10... Nd7 { [%eval 0.08] [%clk 0:03:07] } 11. Nd2 { [%eval -0.07] [%clk 0:02:56] } 11... Nxd2 { [%eval -0.11] [%clk 0:03:05] } 12. Qxd2 { [%eval 0.07] [%clk 0:02:56] } 12... e5 { [%eval 0.0] [%clk 0:03:06] } 13. dxe5 { [%eval -0.27] [%clk 0:02:48] } 13... Nxe5 { [%eval -0.29] [%clk 0:03:06] } 14. Bf4 { [%eval -0.63] [%clk 0:02:19] } 14... Qe7 { [%eval -0.46] [%clk 0:03:01] } 15. Rfd1?! { [%eval -1.1] } { Inaccuracy. Nb5 was best. } { [%clk 0:02:19] } 15... Rfe8?! { [%eval -0.18] } { Inaccuracy. f5 was best. } { [%clk 0:02:56] } 16. c3 { [%eval -0.53] [%clk 0:02:19] } 16... Rad8?! { [%eval 0.0] } { Inaccuracy. Nd7 was best. } { [%clk 0:02:47] } 17. Bb5 { [%eval -0.31] [%clk 0:02:17] } 17... Rf8 { [%eval -0.56] [%clk 0:02:38] } 18. Qc2 { [%eval -0.96] [%clk 0:02:15] } 18... Nd7 { [%eval -0.58] [%clk 0:02:30] } 19. Bf1 { [%eval -0.41] [%clk 0:02:10] } 19... Nc5 { [%eval -0.23] [%clk 0:02:26] } 20. Nb5 { [%eval -0.14] [%clk 0:02:10] } 20... Ne6 { [%eval -0.05] [%clk 0:02:22] } 21. Bg3 { [%eval -0.32] [%clk 0:02:06] } 21... h5 { [%eval 0.1] [%clk 0:02:22] } 22. Nd4 { [%eval 0.08] [%clk 0:01:54] } 22... h4 { [%eval 0.11] [%clk 0:02:19] } 23. Bh2 { [%eval -0.36] [%clk 0:01:54] } 23... Ng5 { [%eval 0.1] [%clk 0:02:11] } 24. Bf4 { [%eval -0.43] [%clk 0:01:35] } 24... Be5?? { [%eval 4.51] } { Blunder. c5 was best. } { [%clk 0:01:43] } 25. Bxg5 { [%eval 4.5] [%clk 0:01:23] } 25... Qxg5 { [%eval 4.66] [%clk 0:01:43] } 26. f4 { [%eval 4.86] [%clk 0:01:24] } 26... Qh6 { [%eval 4.76] [%clk 0:01:29] } 27. fxe5 { [%eval 5.07] [%clk 0:01:23] } 27... dxe5 { [%eval 4.79] [%clk 0:01:30] } 28. Nb5 { [%eval 4.76] [%clk 0:01:19] } 28... Qxe3+ { [%eval 5.02] [%clk 0:01:24] } 29. Qf2 { [%eval 4.88] [%clk 0:01:19] } 29... Qg5 { [%eval 5.3] [%clk 0:01:26] } 30. Nxc7 { [%eval 5.84] [%clk 0:01:13] } 30... e4 { [%eval 5.53] [%clk 0:01:27] } 31. c4?! { [%eval 3.75] } { Inaccuracy. Qxb6 was best. } { [%clk 0:01:03] } 31... e3 { [%eval 3.42] [%clk 0:01:23] } 32. Qe2 { [%eval 4.18] [%clk 0:01:04] } 32... Rd2 { [%eval 4.67] [%clk 0:01:14] } 33. Rxd2 { [%eval 4.76] [%clk 0:00:54] } 33... exd2 { [%eval 4.96] [%clk 0:01:15] } 34. Nd5?? { [%eval 2.12] } { Blunder. Nb5 was best. } { [%clk 0:00:51] } 34... Bxd5 { [%eval 2.33] [%clk 0:01:15] } 35. cxd5 { [%eval 2.74] [%clk 0:00:52] } 35... Rd8 { [%eval 2.18] [%clk 0:01:10] } 36. Rd1 { [%eval 2.22] [%clk 0:00:44] } 36... Qxd5? { [%eval 3.77] } { Mistake. Rxd5 was best. } { [%clk 0:00:59] } 37. Qf2 { [%eval 4.61] [%clk 0:00:42] } 37... Rd6 { [%eval 4.57] [%clk 0:00:49] } 38. Bb5?? { [%eval 2.17] } { Blunder. Qe3 was best. } { [%clk 0:00:30] } 38... Qg5 { [%eval 2.2] [%clk 0:00:39] } 39. b3 { [%eval 2.23] [%clk 0:00:27] } 39... Kg7 { [%eval 2.0] [%clk 0:00:36] } 40. Bc4 { [%eval 1.94] [%clk 0:00:28] } 40... Rd7 { [%eval 2.2] [%clk 0:00:29] } 41. Qf3 { [%eval 2.42] [%clk 0:00:18] } 41... Qe5 { [%eval 1.79] [%clk 0:00:26] } 42. Kf1?? { [%eval 0.0] } { Blunder. Qf2 was best. } { [%clk 0:00:13] } 42... Re7?? { [%eval 5.93] } { Blunder. Rd6 was best. } { [%clk 0:00:21] } 43. Be2?? { [%eval 2.15] } { Blunder. Qf2 was best. } { [%clk 0:00:07] } 43... Rd7 { [%eval 2.54] [%clk 0:00:22] } 44. Kg1 { [%eval 2.66] [%clk 0:00:07] } 44... Qd4+ { [%eval 2.61] [%clk 0:00:18] } 45. Kh1?? { [%eval -1.41] } { Blunder. Qf2 was best. } { [%clk 0:00:07] } 45... Re7 { [%eval -2.25] [%clk 0:00:15] } 46. Qf1 { [%eval -1.96] [%clk 0:00:04] } 46... Qc3?? { [%eval 1.64] } { Blunder. f5 was best. } { [%clk 0:00:11] } 47. Bc4?? { [%eval -9.0] } { Blunder. Qf2 was best. } { [%clk 0:00:05] } 47... f5? { [%eval -4.74] } { Mistake. Re1 was best. } { [%clk 0:00:11] } 48. Qf3? { [%eval -9.07] } { Mistake. Be2 was best. } { [%clk 0:00:04] } 48... Re1+ { [%eval -8.41] [%clk 0:00:11] } 49. Kh2? { [%eval #-8] } { Checkmate is now unavoidable. Qf1 was best. } { [%clk 0:00:04] } 49... Qe5+?! { [%eval -11.54] } { Lost forced checkmate sequence. Qxf3 was best. } { [%clk 0:00:13] } 50. g3 { [%eval -11.14] [%clk 0:00:04] } 50... Qxg3+ { [%eval -11.46] [%clk 0:00:11] } 51. Qxg3 { [%eval -11.61] [%clk 0:00:05] } 51... hxg3+ { [%eval -11.67] [%clk 0:00:12] } 52. Kg2 { [%eval -14.0] [%clk 0:00:05] } 52... Rxd1 { [%eval -13.18] [%clk 0:00:09] } 0-1