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Subject: have you ever seen such a change in GM score

Author: K. Burcham

Date: 20:32:08 10/14/03



28.  white is up  +2.41
       black is up  +5.81
29.  white   mate in 9
       black is up  +8.39
30.  white is up  +2.62
       black is up  +8.89
31.   white is up 6.55
        black resigns


next move from this position is 28.Kg2
 [D] 1r4k1/R4pp1/8/5Qp1/p7/1q1PP1P1/5P1P/1rR3K1 w - -


[Event "Samba Cup"]
[Site "Skanderborg, Denmark"]
[Date "2003.10.14"]
[Round "5"]
[White "C.Hansen(GM)"]
[Black "Sadvakasov(GM)"]
[WhiteElo "2616"]
[BlackElo "2595"]
[ECO "A29"]
[Result "1-0"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2
Nb6 7. O-O Be7 8. d3 O-O 9. a3 Be6 10. Be3 Nd5 11. Nxd5
Bxd5 12. Qa4 Qd6 13. Rac1 Qe6 14. Qb5 a6 15. Qxb7 Rfb8
16. Qxc7 Rxb2 17. Ng5 Bxg5 18. Bxd5 Qxd5 19. Bxg5 h6
20. Rxc6 hxg5 21. Rd6 Qa2 22. e3 Qxa3 23. Rd7 Qb3 24. Qxe5
a5 25. Rc1 a4 26. Ra7 Rb8 27. Qf5 Rb1 28. Kg2 a3 29. Qd7 a2
30. Qd6 Qb7+ {White wins} 1-0


 10/22	 0:01 	+2.24 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.Qd7 a3 31.Qd6 Rb4 32.Qa6 g4
33.Qxa3 Qxa3 34.Rxa3 (1.611.514) 1159.3
 11/26	 0:02 	+2.27 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.Qd7 a3 31.Qd6 Rb4 32.Qd8+ Kh7
33.Qa5 Kg6 34.d4 g4 35.Qxa3 Qxa3 36.Rxa3 (3.321.259) 1181.9
 12/28	 0:06 	+2.26 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.d4 a3 31.d5 Rf8 32.Qxg5 a2
33.d6 Qb1 34.d7 a1Q 35.Rxa1 Qxa1 36.d8Q Rxd8 37.Qxd8+ (7.726.092) 1197.8
 13/31	 0:14 	+2.33 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.d4 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.Ra5 Kf6 34.Kf3 Rh8 35.Kg2 (17.593.031) 1200.0
 14/34	 0:40 	+2.33 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.h3 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.Ra7+ Kf6 34.Kf3 g6 35.Ra2 Kf5 36.d4 (48.809.358) 1205.1
 15/36	 1:18 	+2.38 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.d4 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.Ra2 Kf6 34.f3 Rb1 35.h3 g6 36.Kf2 (95.042.306) 1217.7
 16/39	 2:10 	+2.39 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.d4 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.Ra7+ Kf6 34.g4 Rb4 35.Kf3 Rb2 36.e4 Rb3+ (158.790.764) 1219.3
 17/42	 6:13 	+2.40 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.h3 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.Ra2 Kf6 34.Kf3 Rh8 35.Kg4 Rb8 36.Ra7 Rb4+ 37.f4 g6 (453.752.324) 1215.3
 18/45	16:17 	+2.41 	28.Rxb1 Qxb1+ 29.Kg2 Qb3 30.d4 Qe6 31.Qxe6 fxe6 32.Rxa4 Kf7
33.e4 Kf6 34.Kf3 Rb3+ 35.Kg4 Rb6 36.e5+ Kg6 37.f4 gxf4 38.Kxf4 Rb2 39.h3
(1.185.099.194) 1211.7
best move: Rc1xb1 time: 16:49.453 min  n/s: 1.211.395  CPU 99.0%  nodes:
1.222.831.548 TB: 58
  8/19	 0:00 	+3.80 	28...Rxc1 29.d4 Qc4 30.d5 Rf8 31.g4 Qf1+ 32.Kg3 Qg1+ 33.Kh3
(477.691) 1085.6
  9/21	 0:01 	+4.07 	28...Rxc1 29.Qe5 g4 30.h3 gxh3+ 31.Kxh3 Rf8 32.d4 Qe6+
33.Qxe6 fxe6 34.Rxa4 Rxf2 (1.650.827) 1130.7
 10/25	 0:04 	+4.31 	28...Rxc1 29.Qe5 Rbc8 30.Qe7 R1c2 31.Qxg5 Qxd3 32.Rxa4
Rxf2+ 33.Kxf2 Qc2+ 34.Kf1 Qxa4 (4.851.317) 1163.3
 11/28	 0:12 	+4.52 	28...Rxc1 29.d4 a3 30.Qe5 Rbc8 31.d5 a2 32.d6 Qb1 33.d7
Rg1+ 34.Kh3 Qh7+ 35.Kg4 Qh4+ 36.Kf5 g6+ 37.Kf6 (14.045.631) 1167.5
 12/31	 0:30 	+4.65 	28...Rxc1 29.e4 Rd1 30.Qe5 g4 31.Qf4 Rf8 32.Rd7 Rxd3
33.Qxg4 Rxd7 34.Qxd7 a3 (35.903.766) 1186.9
 13/33	 0:58 	+4.98 	28...Rxc1 29.e4 Rd1 30.Qxg5 Qxd3 31.Qf5 Qf1+ 32.Kf3 Rd3+
33.Kg4 Qe2+ 34.Kh3 Rf3 35.Qe5 Rc8 36.Rxa4 Rxf2 (69.780.478) 1186.1
 14/35	 1:51 	+5.06 	28...Rxc1 29.e4 Rd1 30.Qxg5 Qxd3 31.Qf5 Rf8 32.h4 Qf1+
33.Kf3 Rd2 34.Kg4 Rxf2 35.Qd7 Qe2+ 36.Kh3 Qxe4 37.Qxa4 (132.433.294) 1188.5
 15/40	 5:00 	+5.41++	28...Rxc1 (359.760.794) 1197.0
 15/40	 7:15 	+5.46 	28...Rxc1 29.e4 Rd1 30.Qe5 g4 31.Qf5 Rf8 32.e5 Qd5+ 33.Qe4
Qxe4+ 34.dxe4 Rd4 35.f4 Rxe4 36.Kf2 Rd8 37.Rb7 (524.171.093) 1204.4
 16/40	13:21 	+5.81++	28...Rxc1 (960.153.900) 1197.9
best move: Rb1xc1 time: 13:56.422 min  n/s: 1.199.264  CPU 99.0%  nodes:
1.003.088.739
 10/28	 0:00 	+18.06	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 g4 33.Rxa3 Re8
34.d6 (1.381.536) 1454.2
 11/30	 0:01 	+18.41++	29.Rxb1 (2.614.692) 1444.5
 11/30	 0:02 	  +M9 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rxf7+ Rxf7
34.Qxf7+ Kh6 35.Qf8+ Kh5 36.Qh8+ Kg4 37.Qh3+ (4.154.887) 1478.6
 12/30	 0:03 	  +M9 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rxf7+ Rxf7
34.Qxf7+ Kh6 35.Qf8+ Kh5 36.Qh8+ Kg4 37.Qh3+ (5.855.838) 1493.8
 13/30	 0:06 	  +M9 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rxf7+ Rxf7
34.Qxf7+ Kh6 35.Qf8+ Kh5 36.Qh8+ Kg4 37.Qh3+ (9.311.393) 1521.4
 14/30	 0:09 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (15.038.825) 1539.2
 15/30	 0:15 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (23.424.754) 1552.3
 16/30	 0:23 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (37.515.981) 1569.0
 17/30	 0:39 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (62.268.598) 1585.2
 18/30	 1:04 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (102.493.402) 1587.0
 19/30	 1:50 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (176.555.321) 1599.3
 20/30	 3:11 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (306.936.974) 1602.1
 21/30	 5:13 	  +M8 	29.Rxb1 g6 30.Qf6 Qd5+ 31.e4 Rf8 32.exd5 Kh7 33.Rb8 Kh6
34.Rxf8 Kh5 35.Rh8+ Kg4 36.h3+ (501.615.065) 1600.0
best move: Rc1xb1 time: 5:49.734 min  n/s: 1.587.951  CPU 99.0%  nodes:
555.354.334
  9/22	 0:01 	+4.66 	29...Rxc1 30.Qd6 Ra1 31.Qe5 Rb1 32.Qxg5 a2 33.Qe5 Rd8
34.Qe7 Rxd3 (1.578.243) 1223.4
 10/27	 0:02 	+5.01++	29...Rxc1 (2.948.185) 1218.2
 10/27	 0:09 	+7.12 	29...Rxc1 30.Ra5 g4 31.Qxg4 a2 32.Qd4 Qb7+ 33.e4 Ra8
34.Rxa2 Rxa2 35.Qd8+ Kh7 36.Qg5 (11.893.498) 1273.3
 11/28	 0:12 	+7.04 	29...Rxc1 30.Ra5 g4 31.Qxg4 a2 32.e4 a1Q 33.Rxa1 Rxa1 34.d4
Ra2 35.d5 (15.406.655) 1280.6
 12/33	 0:27 	+7.39++	29...Rxc1 (35.785.379) 1286.3
 12/33	 0:46 	+7.44 	29...Rxc1 30.Qf5 a2 31.Qxg5 a1Q 32.Rxa1 Rxa1 33.d4 Ra2
34.Qf4 Qb2 35.d5 Kf8 (61.210.947) 1303.1
 13/35	 1:19 	+7.74 	29...Rxc1 30.Qf5 a2 31.Qxg5 a1Q 32.Rxa1 Rxa1 33.d4 Qd1
34.Qe5 Qf1+ 35.Kf3 Rb2 36.Qe8+ Kh7 37.Qe4+ g6 38.Qh4+ Kg8 (103.143.497) 1301.3
 14/39	 2:52 	+8.09++	29...Rxc1 (224.142.969) 1297.4
 14/39	 4:41 	+8.39 	29...Rxc1 30.Qf5 a2 31.Qxg5 a1Q 32.Rxa1 Rxa1 33.Qe5 Rb1
34.d4 Qd1 35.Kh3 (364.850.511) 1294.3
best move: Rb1xc1 time: 6:26.031 min  n/s: 1.285.470  CPU 98.0%  nodes:
496.230.244
  9/28	 0:00 	+0.47 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Qe4+ Kh6 37.Qf4+ Kh7 38.Qe5 (1.239.484) 1318.6
 10/28	 0:01 	+0.82++	30.Rc8+ (1.918.130) 1313.7
 10/29	 0:02 	+1.41 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.Ra5 g6 34.Qxg5+
Kh7 35.Qh4+ Kg7 36.Qd4+ Kh7 37.Ra7 Qe6 38.f3 (2.839.241) 1302.4
 11/30	 0:04 	+1.30 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.Ra5 g6 34.Qxg5+
Kg7 35.Qe5+ Kh7 36.Ra7 Rd1 37.Qf6 Rxd3 38.Rxf7+ Kh6 (5.313.846) 1296.0
 12/34	 0:09 	+1.42 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.Qh3+ Kg6 34.Ra6+
Qb6 35.Rxa2 Qd6 36.Rd2 Qc6+ 37.e4 Qc3 38.Qf5+ Kh6 39.Ra2 Qxd3 (12.973.469)
1301.2
 13/37	 0:17 	+1.77++	30.Rc8+ (23.055.428) 1306.2
 13/37	 0:24 	+2.03 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Ra5 f5 37.Ra6+ Kf7 38.Qh5+ Ke7 39.Qg5+ Kf8 40.Ra8+ Kf7
41.Qxf5+ Ke7 42.Qe5+ (31.963.960) 1311.0
 14/42	 0:52 	+2.33 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Ra6+ Qe6 37.Qe4+ Kf6 38.Qa8 a1Q 39.Rxa1 Rxa1 40.Qxa1+ Kg6
41.Kf3 (68.946.603) 1308.0
 15/44	 1:50 	+2.42 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Ra6+ Qe6 37.Qe4+ Kf6 38.Qf4+ Kg6 39.g4 Kh7 40.Qh2+ Qh6
41.Qxh6+ gxh6 42.Rxa2 Kg6 (146.015.229) 1318.4
 16/46	 4:27 	+2.74 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Ra6+ Qe6 37.Qe4+ Kf6 38.Qf4+ Kg6 39.g4 Kh7 40.Qh2+ Qh6
41.Qxh6+ gxh6 42.Rxa2 Kg6 43.Ra7 (349.718.550) 1305.6
 17/49	10:15 	+2.62 	30.Rc8+ Rxc8 31.Qxc8+ Kh7 32.Qf5+ Kh6 33.h4 gxh4 34.Qf4+
Kh7 35.Qxh4+ Kg6 36.Qg4+ Kh6 37.Qh3+ Kg6 38.Ra6+ f6 39.Qg4+ Kh6 40.Qh4+ Kg6
41.Qe4+ Kh6 42.Ra8 Qb8 43.Qh4+ (804.153.654) 1305.5
best move: Rc1-c8 time: 10:53.094 min  n/s: 1.306.540  CPU 99.0%  nodes:
853.301.323 TB: 309
  9/22	 0:00 	+3.29 	30...Rxc1 31.Rxa2 Qxa2 32.Qxb8+ Kh7 33.Qb5 Rc2 34.Qf5+ Kg8
35.d4 g4 (827.582) 1253.9
 10/28	 0:01 	+3.64++	30...Rxc1 (2.339.441) 1278.3
 10/28	 0:02 	+7.49 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb1 33.Qxb8+ Qxb8 34.f3 Qb7
35.e4 f5 (3.723.235) 1329.7
 11/28	 0:04 	+7.48 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb7+ 33.e4 Qb1 34.Qxb8+ Qxb8
35.f4 Qb4 36.Ra2 Qd4 (6.008.569) 1359.4
 12/30	 0:07 	+7.83++	30...Rxc1 (10.645.471) 1349.2
 12/32	 0:13 	+8.29 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb1 33.Qxb8+ Qxb8 34.h4 gxh3+
35.Kxh3 Qc8+ 36.g4 Rh1+ 37.Kg3 Qc3 38.Ra2 Qxd3 39.Ra7 (18.425.897) 1334.2
 13/35	 0:34 	+8.60 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb1 33.Qxb8+ Qxb8 34.f3 Qe5
35.fxg4 Qxe3 36.Rf2 Qxd3 37.g5 (45.975.306) 1324.9
 14/38	 1:26 	+8.75 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb1 33.Qxb8+ Qxb8 34.f3 Qe5
35.fxg4 Qxe3 36.Rf2 Qxd3 37.h4 Rc5 (114.848.417) 1333.2
 15/38	 2:38 	+8.79 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb1 33.Qxb8+ Qxb8 34.f3 Qa8
35.e4 Qa1 36.fxg4 Rg1+ 37.Kf3 Qf6+ 38.Ke3 Qh6+ 39.g5 Qxg5+ 40.Kf2 Qxd2+ 41.Kxg1
Qxd3 (211.723.893) 1339.8
 16/43	 5:38 	+8.89 	30...Rxc1 31.Rxa2 g4 32.Rd2 Qb7+ 33.e4 Qb1 34.Qxb8+ Qxb8
35.f3 Qb6 36.fxg4 Rg1+ 37.Kf3 Qf6+ 38.Ke3 Qh6+ 39.g5 Qxg5+ 40.Kf2 Rh1 41.Kg2
Qxd2+ 42.Kxh1 Qxd3 (458.504.985) 1352.6
best move: Rb1xc1 time: 6:04.375 min  n/s: 1.353.936  CPU 99.0%  nodes:
493.347.299
 11/28	 0:01 	+6.24 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Rb8 35.d4 Rb1
36.Qd8+ Kh7 37.Qh4+ Kg8 (1.975.241) 1362.2
 12/30	 0:02 	+6.08 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Rb8 35.Qd5 Rb2
36.d4 Kf8 (2.773.114) 1366.0
 13/33	 0:03 	+6.25 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Rb8 35.Qd5 Rb2
36.d4 g6 37.e4 (4.221.846) 1370.7
 14/34	 0:05 	+6.42 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Ra5 35.Qg4 Rb8
36.Qe2 Rba8 37.d4 Kf8 (7.364.772) 1363.8
 15/34	 0:09 	+6.49 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Ra5 35.Qg4 Rb8
36.Qe2 Rba8 37.d4 Kf8 38.f3 (12.578.906) 1358.4
 16/37	 0:19 	+6.46 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Ra5 35.Qg4 Rb8
36.Qe2 Rba8 37.d4 Kf8 38.Qc4 Ra3 (26.676.051) 1368.0
 17/38	 0:36 	+6.56 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Ra5 35.Qg4 Rb8
36.Qe2 Rba8 37.d4 Kf8 38.Qc4 Ra4 39.Qd5 (50.158.906) 1362.6
 18/42	 1:14 	+6.55 	31.Rxb7 R1xb7 32.Ra1 Ra8 33.Qd5 Rba7 34.Qxg5 Ra5 35.Qg4
R5a7 36.d4 Ra4 37.Qe4 R4a5 38.f3 Rb8 39.Qc2 Rba8 (102.031.293) 1366.2
best move: Ra7xb7 time: 2:04.563 min  n/s: 1.344.591  CPU 99.0%  nodes:
167.482.357 TB: 4




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