Wang, Aaron Ziwen vs Koka, Saharsh
2024 South Carolina Scholastic Chess Championship · Round 15 · 2024.03.02 · 1-0 · E20 Nimzo-Indian Defense: Romanishin Variation
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PGN
[Event "2024 South Carolina Scholastic Chess Championship"]
[Site "?"]
[Date "2024.03.02"]
[Round "15"]
[White "Wang, Aaron Ziwen"]
[Black "Koka, Saharsh"]
[Result "1-0"]
[PlyCount "119"]
[WhiteElo "1801"]
[WhiteFideId "4304004"]
[BlackElo "1596"]
[BlackFideId "39950247"]
[ECO "E20"]
[Source "LichessBroadcast"]
[SourceQuality "2"]
[ImportDate "2024-03-05"]
1. d4 { ( %eval 0.15] ( %clk 0:30:00] } 1... Nf6
{ ( %eval 0.16] ( %clk 0:29:34] } 2. c4 { ( %eval 0.16] ( %clk 0:30:00] } 2...
e6 { ( %eval 0.21] ( %clk 0:29:34] } 3. Nc3 { ( %eval 0.05] ( %clk 0:30:00] }
3... Bb4 { ( %eval 0.17] ( %clk 0:29:33] } 4. g3
{ ( %eval 0.0] ( %clk 0:30:00] } 4... O-O { ( %eval 0.0] ( %clk 0:29:28] } 5.
Bg2 { ( %eval 0.0] ( %clk 0:29:59] } 5... d5 { ( %eval 0.0] ( %clk 0:29:19] }
6. Nf3 { ( %eval 0.0] ( %clk 0:29:54] } 6... c5
{ ( %eval 0.32] ( %clk 0:29:04] } 7. O-O { ( %eval 0.0] ( %clk 0:27:20] } 7...
Nc6 { ( %eval 0.32] ( %clk 0:27:32] } 8. cxd5 { ( %eval 0.35] ( %clk 0:26:11] }
8... exd5 { ( %eval 0.35] ( %clk 0:27:23] } 9. Bg5
{ ( %eval 0.35] ( %clk 0:25:06] } 9... Bxc3 { ( %eval 0.34] ( %clk 0:26:29] }
10. bxc3 { ( %eval 0.34] ( %clk 0:24:59] } 10... c4 $2
{ ( %eval 1.76]Mistake. h6 was best.( %clk 0:25:36] } ( 10... h6 ) 11. Ne5 $2
{ ( %eval 0.53]Mistake. Nd2 was best.( %clk 0:21:56] } ( 11. Nd2 ) 11... h6
{ ( %eval 0.86] ( %clk 0:21:29] } 12. Nxc6 $6
{ ( %eval 0.08]Inaccuracy. Bxf6 was best.( %clk 0:19:02] } ( 12. Bxf6 ) 12...
bxc6 { ( %eval 0.1] ( %clk 0:21:23] } 13. Bxf6
{ ( %eval 0.1] ( %clk 0:17:25] } 13... Qxf6 { ( %eval 0.11] ( %clk 0:21:00] }
14. Rb1 { ( %eval -0.33] ( %clk 0:16:47] } 14... Bf5
{ ( %eval -0.28] ( %clk 0:20:19] } 15. Rb2 { ( %eval -0.61] ( %clk 0:15:29] }
15... Rab8 { ( %eval -0.78] ( %clk 0:19:16] } 16. Qc1
{ ( %eval -0.64] ( %clk 0:14:12] } 16... Qd6
{ ( %eval -0.64] ( %clk 0:18:16] } 17. Re1 { ( %eval -0.57] ( %clk 0:13:03] }
17... Rxb2 { ( %eval -0.55] ( %clk 0:16:29] } ( 17... Rb5 18. Rb4 Rxb4
{ ( %clk 0:16:29] } 19. Qb2 { ( %clk 0:13:03] } ) 18. Qxb2
{ ( %eval -0.73] ( %clk 0:13:03] } 18... Rb8
{ ( %eval -0.59] ( %clk 0:15:43] } 19. Qd2 { ( %eval -0.73] ( %clk 0:12:31] }
19... Re8 { ( %eval -0.6] ( %clk 0:15:12] } 20. f3
{ ( %eval -0.64] ( %clk 0:10:32] } 20... c5 $6
{ ( %eval -0.09]Inaccuracy. Rb8 was best.( %clk 0:12:49] } ( 20... Rb8 21. e4
Bd7 22. f4 Rb5 23. a4 Rb8 24. Bf3 dxe4 25. Bxe4 Qa3 26. f5 Qxa4 27. f6 ) 21. e4
{ ( %eval -0.09] ( %clk 0:09:07] } 21... dxe4
{ ( %eval 0.33] ( %clk 0:12:41] } 22. fxe4 { ( %eval 0.31] ( %clk 0:08:55] }
22... Bg6 $6 { ( %eval 1.01]Inaccuracy. Bd7 was best.( %clk 0:12:15] } ( 22...
Bd7 23. d5 ) 23. Qf2 $4 { ( %eval -0.65]Blunder. e5 was best.( %clk 0:06:39] }
( 23. e5 ) 23... cxd4 { ( %eval -0.52] ( %clk 0:11:45] } 24. Qxd4
{ ( %eval -0.6] ( %clk 0:05:50] } 24... Qxd4+ $6
{ ( %eval 0.02]Inaccuracy. Qc7 was best.( %clk 0:11:19] } ( 24... Qc7 25. Rd1
Kh7 26. Bf3 f6 27. Rd2 Re5 28. Kg2 h5 29. h4 Qc6 30. Qd7 Qb6 31. Qd4 ) 25. cxd4
{ ( %eval 0.13] ( %clk 0:05:50] } 25... c3 { ( %eval 0.0] ( %clk 0:10:59] } 26.
d5 { ( %eval 0.0] ( %clk 0:04:07] } 26... c2 { ( %eval 0.0] ( %clk 0:10:38] }
27. Rc1 { ( %eval 0.0] ( %clk 0:03:55] } 27... Bxe4
{ ( %eval 0.0] ( %clk 0:10:36] } 28. Bxe4 { ( %eval 0.0] ( %clk 0:03:27] }
28... Rxe4 { ( %eval 0.0] ( %clk 0:10:35] } 29. Rxc2
{ ( %eval 0.0] ( %clk 0:03:02] } 29... Re1+ { ( %eval 0.08] ( %clk 0:10:35] }
30. Kf2 { ( %eval 0.02] ( %clk 0:02:48] } 30... Rd1
{ ( %eval 0.21] ( %clk 0:10:33] } 31. Rc8+ { ( %eval 0.11] ( %clk 0:02:44] }
31... Kh7 { ( %eval 0.09] ( %clk 0:10:31] } 32. Rc7
{ ( %eval 0.0] ( %clk 0:02:30] } 32... Rxd5 { ( %eval 0.0] ( %clk 0:10:00] }
33. Rxa7 { ( %eval 0.0] ( %clk 0:02:30] } 33... Kg6
{ ( %eval 0.0] ( %clk 0:09:57] } 34. Ke3 { ( %eval 0.0] ( %clk 0:02:24] } 34...
f5 { ( %eval 0.0] ( %clk 0:09:51] } 35. a4 { ( %eval 0.0] ( %clk 0:02:17] }
35... Re5+ { ( %eval 0.0] ( %clk 0:09:36] } 36. Kf3
{ ( %eval 0.0] ( %clk 0:02:17] } 36... Kh5 { ( %eval 0.0] ( %clk 0:09:12] }
37. Rxg7 { ( %eval 0.0] ( %clk 0:02:04] } 37... Ra5
{ ( %eval 0.0] ( %clk 0:09:12] } 38. g4+ { ( %eval 0.0] ( %clk 0:01:41] }
38... fxg4+ { ( %eval 0.22] ( %clk 0:09:11] } 39. Rxg4 { ( %eval 0.36] } 39...
Rc5 { ( %eval 0.23] ( %clk 0:08:52] } 40. Rd4 { ( %eval 0.0] ( %clk 0:01:36] }
40... Ra5 $4 { ( %eval 2.85]Blunder. Rc3+ was best.( %clk 0:08:51] } ( 40...
Rc3+ 41. Ke4 Rh3 42. a5 Rxh2 43. a6 Ra2 44. a7 Kg5 45. Rd8 Rxa7 46. Rg8+ Kh5
47. Rb8 ) 41. Ke3 { ( %eval 2.81] ( %clk 0:01:34] } 41... Kg6
{ ( %eval 3.09] ( %clk 0:08:50] } 42. Rg4+ $4
{ ( %eval 0.71]Blunder. Kd3 was best.( %clk 0:01:29] } ( 42. Kd3 ) 42... Kf5
{ ( %eval 1.06] ( %clk 0:08:39] } 43. Rh4 { ( %eval 0.95] ( %clk 0:01:29] }
43... Kg5 $6 { ( %eval 1.79]Inaccuracy. Kf6 was best.( %clk 0:08:00] } ( 43...
Kf6 44. Kd3 ) 44. Rd4 $2
{ ( %eval 0.58]Mistake. Rf4 was best.( %clk 0:01:29] } ( 44. Rf4 Re5+ ) 44...
h5 { ( %eval 0.96] ( %clk 0:07:47] } 45. Kd3 { ( %eval 1.05] ( %clk 0:01:25] }
45... Rc5 $4 { ( %eval 2.92]Blunder. Kf6 was best.( %clk 0:07:26] } ( 45...
Kf6 46. Kc2 Ke5 47. Kc3 Ra8 48. Rh4 Rh8 49. Kb4 Kd5 50. Kb5 Rb8+ 51. Ka5 Rh8
52. Kb6 ) 46. Rc4 { ( %eval 2.89] ( %clk 0:01:25] } 46... Rd5+
{ ( %eval 3.01] ( %clk 0:07:17] } 47. Kc3 { ( %eval 3.22] ( %clk 0:01:25] }
47... Rf5 $6 { ( %eval 4.11]Inaccuracy. Kf5 was best.( %clk 0:07:04] } ( 47...
Kf5 48. Rh4 Kf6 49. Re4 Rg5 50. h4 Rc5+ 51. Kb4 Rc8 52. a5 Kf5 53. Rc4 Rb8+ 54.
Ka4 ) 48. Kb4 { ( %eval 4.75] ( %clk 0:01:25] } 48... h4 $2
{ ( %eval 35.45]Mistake. Rf8 was best.( %clk 0:06:51] } ( 48... Rf8 49. a5 )
49. Rc5 { ( %eval 35.31] ( %clk 0:01:17] } 49... Rxc5
{ ( %eval 35.43] ( %clk 0:06:30] } 50. Kxc5 { ( %eval 35.34] ( %clk 0:01:17] }
50... Kg4 { ( %eval 35.21] ( %clk 0:06:26] } 51. a5
{ ( %eval 42.74] ( %clk 0:01:17] } 51... Kh3 { ( %eval 33.83] } 52. a6
{ ( %eval #17] ( %clk 0:01:17] } 52... Kxh2 { ( %eval #20] ( %clk 0:06:16] }
53. a7 { ( %eval #17] ( %clk 0:01:17] } 53... h3
{ ( %eval #16] ( %clk 0:06:16] } 54. a8=Q { ( %eval #12] ( %clk 0:01:17] }
54... Kg1 { ( %eval #15] ( %clk 0:06:13] } 55. Qg8+
{ ( %eval #14] ( %clk 0:01:05] } 55... Kh2 $4
{ ( %eval #5]Checkmate is now unavoidable. Kf2 was best.( %clk 0:06:10] } (
55... Kf2 56. Qf7+ Kg2 57. Qg6+ Kf3 58. Qf5+ Kg3 59. Qg5+ Kf3 60. Qh4 h2 61.
Qxh2 Kg4 62. Qg2+ ) 56. Qg4 { ( %eval #6] ( %clk 0:01:05] } 56... Kh1
{ ( %eval #6] ( %clk 0:06:08] } 57. Qxh3+ { ( %eval #5] ( %clk 0:01:05] }
57... Kg1 { ( %eval #5] ( %clk 0:06:03] } 58. Qf3
{ ( %eval #5] ( %clk 0:01:05] } 58... Kh2 { ( %eval #5] ( %clk 0:06:03] } 59.
Qg4 { ( %eval #4] ( %clk 0:01:05] } 59... Kh1 { ( %eval #4] ( %clk 0:06:03] }
60. Kd4 { ( %eval #3] ( %clk 0:01:05] } 1-0