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Subject: Re: BS2830 Position 3

Author: Dann Corbit

Date: 18:22:50 08/25/05

Go up one level in this thread


On August 25, 2005 at 19:56:47, Joshua Lee wrote:

>Hello i was wondering if anybody knows the source of this position and possibly
>the gamescore.

Could not locate the game.

Here is analysis from some strong engines.  The only engine to find the key move
was Fruit, and the scores for the alternative Bg4 are quite a bit better for
some of the other engines.

Maybe a GM can look at the position and tell us why the key move really is best.


Analysis from E:\bs3.epd
8/25/2005 5:27:55 PM Level: 600 Seconds
Analyzing engine: Shredder9UCI

1) Bh3+; id "BS2830-03"
    Searching move: Bc8-h3
    Best move (Shredder9UCI): Bc8-g4
    Not found in: 10:00
     2/5+	00:00	         149	202	-0.08	Bc8g4
     2/6	00:00	         254	346	+0.14	Bc8g4 Nc4d2
     3/8	00:00	         824	1.122	+0.21	Bc8g4 Nc4d2 Qd8f6
     3/8+	00:00	       1.040	1.416	+0.25	g5g4
     3/8	00:00	       1.085	1.446	+0.25	g5g4 Nf3h4 Bc8e6
     4/12	00:00	       1.988	2.650	+0.03	g5g4 Nf3h4 Nc6d4 Bb2xd4
     4/12+	00:00	       2.189	2.918	+0.07	Bc8g4
     4/12	00:00	       2.725	3.633	+0.19	Bc8g4 Nc4d2 Nc6d4 Bb2xd4
     5/18	00:00	       8.055	10.740	-0.02	Bc8g4 Nc4d2 Nc6d4 Bb2xd4 c5xd4 h2h3
Bg4h5
     6/18+	00:00	      20.491	26.236	+0.23	Bc8g4 Nc4d2
     6/18	00:00	      29.795	37.383	+0.38	Bc8g4 Nc4d2 Qd8d7 Rf1d1 Bg4h3+ Kg2g1
g5g4 Nf3g5
     7/22	00:00	      59.716	69.518	+0.46	Bc8g4 Nc4d2 Qd8d7 Rf1c1 Nc6d4 Bb2xd4
c5xd4 Kg2g1 Ra8c8
     8/20+	00:01	      97.564	104.012	+0.71	Bc8g4 Nc4d2
     8/27	00:01	     135.594	135.594	+0.94	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Rf8xf3 Nd2xf3
Ra8f8 Qe2e3 Bg4xf3
     9/22+	00:01	     175.280	162.597	+1.19	Bc8g4 Nc4d2
     9/26	00:01	     282.136	222.856	+1.61	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Rf8xf3 Nd2xf3
Ra8f8 Nf3xe5 Nc6xe5 Qe2e3 Ne5f3+ Kg1h1 Bg7xb2
    10/26-	00:01	     537.538	312.703	+1.36	Bc8g4 Nc4d2
    10/26	00:01	     593.632	324.743	+1.36	Bc8g4 Nc4d2 Qd8d7 Rf1c1 Rf8xf3 Nd2xf3
    11/23+	00:02	     850.568	365.364	+1.61	Bc8g4 Nc4d2
    11/32	00:02	   1.085.525	403.841	+1.61	Bc8g4 Nc4d2 Qd8d7 Rf1c1
    12/33	00:05	   2.370.510	465.353	+1.44	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Ra8c8 f2f3 g4xf3 c2c3 Qd7h3 Nd2c4 Rf8f6
    13/34	00:08	   4.357.735	494.466	+1.59	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 h7h6 c2c3 Qd7h3 Nd2c4 Qh3g4 Nc4d2 Ra8d8 h2h4 g5xh4
    14/42	00:16	   8.400.411	506.231	+1.60	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 h7h6 c2c3 Rf8f6 d3d4
    15/42	00:33	  16.799.972	508.843	+1.67	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 h7h6 c2c3 Rf8f6 d3d4 Ra8f8 d4xc5 d6xc5 c3c4 Rf6d6
    16/42	01:10	  37.130.262	525.158	+1.69	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 h7h6 Kg1g2 Qd7e6 Nf3e1 a7a6 f2f3 b7b5 c2c3 b5b4 c3c4 Ra8d8
    17/48	02:37	  82.845.326	526.473	+1.66	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 Bg7h6 Nd2c4
    18/52	05:40	 180.536.252	529.845	+1.75	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 h7h6 Kg1g2 Qd7e6 h2h3 Rf8f7 Nf3e1 Ra8f8 f2f3 a7a6
   8/25/2005 5:38:02 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
8/25/2005 5:38:03 PM, Total time: 12:10:07 AM
Rated time: 10:00 = 600 Seconds

--------------------------------------------------------------------------------

Analysis from E:\bs3.epd
8/25/2005 5:27:55 PM Level: Infinite
Analyzing engine: Fruit_21_db

1) Bh3+; id "BS2830-03"
    Searching move: Bc8-h3
    Best move (Fruit_21_db): Bc8-h3
    identical moves! Found in: 04:04
     2/11	00:00	         319	0	-1.03	Bc8e6 Kg2h1
     2/11	00:00	         419	0	-1.02	Kg8h8 Kg2h1
     2/11	00:01	         715	0	-0.21	Bc8g4 Nc4d2
     3/11	00:01	       1.241	0	+0.15	Bc8g4 Nc4d2 Kg8h8
     4/11	00:01	       3.159	0	-0.03	Bc8g4 Nc4d2 Qd8f6 Bb2c3
     5/13	00:01	      11.187	0	-0.03	Bc8g4 Nc4d2 Nc6b4 c2c3 Nb4c2
     6/16	00:01	      36.067	0	-0.05	Bc8g4 Nc4d2 Qd8d7 Rf1e1 Nc6b4 Rb1c1
     7/19	00:01	      90.310	0	 0.00	Bc8g4 Nc4d2 Qd8d7 Rf1c1 Kg8h8 Kg2h1 Qd7c7
     8/22	00:01	     252.083	0	+0.43	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2 Kg8h8
Bb2c3
     9/28	00:01	     514.697	0	+0.22	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Qd7f7 Kg1g2 Qf7h5
h2h4 g5xh4 g3xh4
    10/30	00:02	   1.239.314	799.560	+0.52	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Qd7f7 Kg1g2
Qf7h5 Qe2e3 Bg4h3+ Kg2h1 Bh3xf1 Rb1xf1
    11/41	00:04	   2.692.361	853.333	+0.45	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Qd7f7 Kg1g2
Qf7h5 Rf1g1 Kg8h8 h2h4 g5xh4 g3xh4
    12/41	00:08	   6.352.169	874.286	+0.69	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Qd7f7 Kg1g2
Qf7h5 Qe2e3 Bg4h3+ Kg2h1 Bh3xf1 Rb1xf1 g5g4 Nf3g5
    13/47	00:15	  13.305.542	884.286	+0.85	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 Bb2xd4 c5xd4 Qe3g5 h7h6 Qg5g6
    14/50	00:39	  35.197.253	910.526	+0.90	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 c2c3 Nd4c2 Qe3g5 h7h6 Qg5g6
    15/60	01:39	  88.935.524	899.286	+0.74	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 c2c3 Nd4c2 Qe3e2 Bg7f6 Nh4f5 h7h5
    15/64	04:04	 218.108.377	894.639	+0.97	Bc8h3+ Kg2xh3 g5g4+ Kh3xg4 Qd8d7+
Kg4h4 Bg7f6+ Nf3g5 Bf6xg5+ Kh4xg5 Rf8f6 Qe2h5 Qd7g7+ Kg5h4 Rf6h6 f2f4 Rh6xh5+
Kh4xh5 Qg7g6+ Kh5h4 Qg6h6+ Kh4g4 Qh6xh2 Nc4xd6 Qh2xc2 Nd6xb7 Ra8b8 Nb7d6 Rb8xb3
    16/70	06:47	 369.333.196	908.764	+0.99	Bc8h3+ Kg2xh3 g5g4+ Kh3xg4 Qd8d7+
Kg4h4 Bg7f6+ Nf3g5 Bf6xg5+ Kh4xg5 Rf8f6 Qe2h5 Qd7g7+ Kg5h4 Rf6h6 f2f4 Rh6xh5+
Kh4xh5 Qg7g6+ Kh5h4 Qg6h6+ Kh4g4 Qh6xh2 Nc4xd6 h7h5+ Kg4f3 Qh2xc2 Bb2xe5 Qc2xd3+
Kf3g2 Ra8f8
   8/25/2005 5:48:13 PM, Time for this analysis: 00:10:01, Rated time: 04:04

1 of 1 matching moves
8/25/2005 5:48:13 PM, Total time: 12:20:18 AM
Rated time: 04:04 = 244 Seconds

--------------------------------------------------------------------------------

Analysis from E:\bs3.epd
8/25/2005 5:27:55 PM Level: Infinite
Analyzing engine: Glaurung

1) Bh3+; id "BS2830-03"
    Searching move: Bc8-h3
    Best move (Glaurung): Bc8-g4
    Not found in: 10:00
     2/10	00:00	         284	0	+0.15	g5g4 Nf3g1
     3/10	00:00	         746	0	+0.53	g5g4 Nf3g1 Bc8e6
     4/11	00:00	       1.749	0	+0.18	g5g4 Nf3g1 Nc6d4 Bb2xd4 c5xd4
     5/14	00:00	       5.204	346.933	+0.18	g5g4 Nf3g1 Nc6d4 Bb2xd4 c5xd4
     6/18	00:00	      15.909	513.193	+0.10	g5g4 Nf3g1 d6d5 e4xd5 Qd8xd5+ Qe2e4
Qd5e6
     6/22	00:00	      41.288	443.956	+0.15	Bc8g4 Nc4d2 Bg4xf3+ Nd2xf3 g5g4 Nf3g1
Qd8g5
     7/22	00:00	      70.945	414.883	-0.15	Bc8g4 Nc4d2 d6d5 h2h3 Bg4h5 Kg2h2
Nc6d4 Bb2xd4 c5xd4 e4xd5 Qd8xd5
     8/24	00:00	     241.313	406.935	+0.15	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Nc6b4 Rf1c1
Nb4a2 Rc1h1
     9/28	00:01	     525.271	410.047	+0.12	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 Nc6b4 Rf1c1
    10/31	00:03	   1.401.387	411.446	+0.29	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 g5g4 Nf3g5 Nc6d4
    11/35	00:07	   3.039.893	409.578	+0.29	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 g5g4 Nf3g5 Nc6d4 Rf1c1
    12/41	00:18	   7.404.782	408.878	+0.42	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 Bb2xd4 c5xd4
    13/44	00:35	  14.640.242	412.936	+0.28	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 c2c3 Nd4c2 Qe3g5
    14/44	02:24	  58.948.422	407.144	+0.53	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
g5g4 Nf3h4 Bh3xf1 Nd2xf1 Nc6d4 Qe3d2 Bg7f6 Nf1e3 Bf6xh4 g3xh4
    15/49	04:25	 108.668.856	410.154	+0.37	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2g1
g5g4 Nf3h4 Bh3xf1 Rb1xf1 Nc6d4 Bb2xd4 c5xd4 Qe3g5 Ra8c8 Nd2c4
   8/25/2005 5:58:22 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
8/25/2005 5:58:23 PM, Total time: 12:30:27 AM
Rated time: 10:00 = 600 Seconds

--------------------------------------------------------------------------------

Analysis from E:\bs3.epd
8/25/2005 5:27:55 PM Level: Infinite
Analyzing engine: Gandalf60

1) Bh3+; id "BS2830-03"
    Searching move: Bc8-h3
    Best move (Gandalf60): Bc8-g4
    Not found in: 10:00
     5/20	00:01	      15.509	77.545	-0.12	Bc8g4 Nc4d2 Qd8f6 h2h3 Bg4e6
     6/26+	00:01	      48.059	240.295	+0.25	Bc8g4 Nc4d2
     6/26	00:01	      49.435	164.783	+0.25	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2
     7/28	00:02	     116.532	291.330	+0.03	Bc8g4 Nc4d2 Qd8d7 Rf1g1 Nc6b4 Qe2e3
h7h6
     8/36+	00:02	     396.553	396.553	+0.41	Bc8g4 Nc4d2
     8/36+	00:02	     415.352	415.352	+0.80	Bc8g4 Nc4d2
     8/36	00:02	     471.249	392.707	+0.86	Bc8g4 Nc4d2 Qd8d7 Rf1e1 Rf8xf3 Nd2xf3
Ra8f8 Nf3xe5 Nc6xe5 Qe2d2
     9/36	00:03	     856.209	475.671	+0.99	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2
Qf7h5 Rf1h1 Bg4h3+ Kg2g1 h7h6
    10/40	00:05	   1.825.779	536.993	+0.99	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2
Qf7h5 Rf1g1 h7h6 Rg1h1 Bg4h3+ Kg2g1
    11/40	00:08	   3.844.245	582.461	+1.05	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2
Qf7h5 Rf1g1 h7h6 Rg1d1 a7a6
    12/41	00:16	   9.232.625	623.826	+1.24	Bc8g4 Nc4d2 Qd8d7 Kg2h1 Qd7f7 Kh1g2
Qf7h5 Qe2e3 Nc6d4 Bb2xd4 c5xd4 Qe3e2 Ra8c8
    13/47	00:39	  24.482.650	649.407	+0.99	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 g5g4 Nf3h4 Nc6d4 Bb2xd4 c5xd4 Qe3g5 h7h6 Qg5g6
    14/49	01:43	  66.763.472	656.474	+1.15	Bc8g4 Nc4d2 Qd8d7 Kg2g1 h7h6 Kg1h1
Qd7f7 Kh1g2 Qf7h5 Qe2e3 Bg4h3+ Kg2h1 Bh3xf1 Rb1xf1 g5g4 Nf3h4
    15/53	04:24	 164.788.737	627.766	+1.31	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
g5g4 Nf3h4 Bh3xf1 Rb1xf1 Nc6d4 Bb2xd4 c5xd4 Qe3e2
    16/55	09:52	 386.917.344	655.236	+1.21	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 h7h6 Qe3e2 Rf8f6 Nd2c4 Ra8f8 Nf3d2 Nc6b4 f2f4 g5xf4 c2c3
   8/25/2005 6:08:31 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
8/25/2005 6:08:32 PM, Total time: 12:40:36 AM
Rated time: 10:00 = 600 Seconds

--------------------------------------------------------------------------------

Analysis from E:\bs3.epd
8/25/2005 5:27:55 PM Level: Infinite
Analyzing engine: DeepSjeng 1.6

1) Bh3+; id "BS2830-03"
    Searching move: Bc8-h3
    Best move (DeepSjeng 1.6): Bc8-g4
    Not found in: 10:00
     3/9	00:00	         709	0	+0.45	Bc8g4 Nc4d2 d6d5 e4xd5 Qd8xd5
     4/11	00:00	       1.941	0	+0.26	Bc8g4 Nc4d2 Nc6d4 Bb2xd4
     5/17	00:00	       4.530	0	+0.05	Bc8g4 Nc4d2 Nc6d4 Bb2xd4 e5xd4
     6/19	00:00	      19.609	0	-0.04	Bc8g4 Nc4d2 Nc6d4 Bb2xd4 c5xd4 h2h3 Bg4e6
     7/23	00:00	     107.409	0	+0.03	Bc8g4 Nc4d2 Nc6d4 Bb2xd4 c5xd4 h2h3 Bg4e6
Kg2h2 Ra8c8
     8/27	00:01	     295.652	0	+0.02	Bc8g4 Nc4d2 Nc6d4 Bb2xd4 c5xd4 h2h3 Bg4e6
Kg2h2 Ra8c8 Nd2c4 Qd8e7
     9/30+	00:02	     838.435	0	+0.42	Bc8g4
     9/30	00:03	   1.076.168	380.587	+1.16	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Rf8xf3 Nd2xf3
Ra8f8 Qe2e3 Bg4xf3 Qe3xg5 Nc6d4
    10/33+	00:06	   2.603.736	436.290	+1.56	Bc8g4
    10/33	00:08	   3.653.775	445.540	+1.72	Bc8g4 Nc4d2 Qd8d7 Kg2g1 Rf8xf3 Nd2xf3
Ra8f8 Nf3xe5 d6xe5 Qe2e3 Bg4h3 Rf1d1 Nc6d4 Kg1h1 Rf8f3 Qe3d2
    11/39	00:19	   9.224.637	484.974	+1.91	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 h7h6 c2c3 Ra8d8 Rf1e1 Qd7h3 Nd2c4 g5g4 Nf3d2
    12/44	00:48	  23.881.517	498.221	+1.92	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 h7h6 c2c3 Ra8d8 Rf1e1 Qd7g4 Kh1g2 Nc6a5 h2h3 Qg4e6 c3c4
    13/46	02:15	  66.217.253	507.346	+1.96	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 h7h6 c2c3 Ra8d8 Rf1e1 Qd7g4 d3d4 Nc6a5 d4d5 Na5xb3 Nf3xe5 Bg7xe5
Nd2xb3
    14/50	06:52	 199.598.720	491.300	+1.96	Bc8g4 Nc4d2 Qd8d7 Qe2e3 Bg4h3+ Kg2h1
Bh3xf1 Rb1xf1 h7h6 c2c3 Ra8d8 Rf1e1 Qd7g4 d3d4 Nc6a5 d4xe5 d6xe5 c3c4 Na5c6
Re1d1
   8/25/2005 6:19:25 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
8/25/2005 6:19:26 PM, Total time: 12:51:30 AM
Rated time: 10:00 = 600 Seconds



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