Author: Dann Corbit
Date: 11:02:50 12/27/05
Go up one level in this thread
On December 22, 2005 at 19:21:03, Dann Corbit wrote:
>On December 22, 2005 at 18:52:43, Drexel,Michael wrote:
>
>>On December 22, 2005 at 16:37:25, Dann Corbit wrote:
>>
>>>On December 22, 2005 at 15:23:07, Dann Corbit wrote:
>>>
>>>>On December 22, 2005 at 14:35:56, Drexel,Michael wrote:
>>>>
>>>>>On December 22, 2005 at 13:26:55, Dann Corbit wrote:
>>>>>
>>>>>>On December 21, 2005 at 21:20:10, Uri Blass wrote:
>>>>>>
>>>>>>>On December 21, 2005 at 20:30:18, Dann Corbit wrote:
>>>>>>>>
>>>>>>>>Generally speaking, chess engines have terrible judgement in early opening
>>>>>>>>positions and absurd judgement in gambits.
>>>>>>>>
>>>>>>>>For a bit of gambit fun, try this position on your chess engine:
>>>>>>>>
>>>>>>>>[D]r1bqk1nr/pppp1ppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 b kq - am dxc3; bm Nge7;
>>>>>>>>
>>>>>>>>and see how long it takes to find Nge7. Most engines I tried cannot find it in
>>>>>>>>an 8 hour search. I have not tried it lately, but I guess that they still
>>>>>>>>cannot find it at 40/2, no matter what the hardware or program (w/o book, that
>>>>>>>>is).
>>>>>>>
>>>>>>>am dxc3 is easy for rybka
>>>>>>
>>>>>>Not for the others, though.
>>>>>>
>>>>>>>bm Nge7 is an harder problem and Rybka likes Nf6
>>>>>>>Are you sure that Nge7 is the only move?
>>>>>>
>>>>>>It is clearly the best move.
>>>>>
>>>>>I wonder how you came to that definite conclusion?
>>>>>You are aware of the alternative 7...Bb6 8.cxd4 d6 ?
>>>>
>>>>It appears to have been popular in the 1800's. In my database, I have 512 games
>>>>from that position:
>>>>[D]r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq -
>>>>and white scores 58.8% of the points (well above average).
>>>>
>>>>I am analyzing the position now.
>>>
>>>Rybka thinks that White is slightly better here. Considering also that White
>>>scores only 48.8% after the Nge7 move (a ten percent swing from this
>>>alternative) it seems to me that it is not as good for black as Nge7. Of
>>>course, I am not a chess expert. Maybe someone like Robin Smith can offer more
>>>insight.
>>
>>It is dangerous but that doesn't mean it is necessarily bad.
>>According to my database black as won many games with this line recently.
>>7...Nge7 is a good move but theory says 8.cxd4 d5 9.exd5 Nxd5 10.Ba3 Be6 11.Qb3
>>is equal.
>
>It's certainly an interesting alternative, worth investigation.
>I'm going to study it some more.
>[snip]
Additional analysis:
Given:
[D]r2qk2r/ppp2ppp/2n1b3/b2n4/2BP4/BQ3N2/P4PPP/RN3RK1 b kq - c0 "After Qb3, is it
equal?";
It does appear that black is a bit better (similar to Nge7 trajectory)...
Analysis from E:\after_qb3.epd
12/22/2005 8:12:57 PM Level: 86399 Seconds
Analyzing engine: Rybka v1.0 Beta.w32
1) "After Qb3, is it eq
Avoid move:
Best move (Rybka v1.0 Beta.w32): Qd8-d7
Not found in: 23:59:59
3 00:00 1.117 67.282 +0.30 Ra8b8
4 00:01 2.967 63.296 +0.32 Ra8b8
5 00:01 7.212 58.611 +0.31 Ra8b8 Qb3b2
6 00:01 17.352 51.502 +0.17 Ra8b8 Rf1d1 Ba5b4
6 00:01 30.103 54.655 +0.51 Qd8d7 Nb1d2 Ba5xd2
7 00:01 36.324 55.268 +0.16 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7
7 00:01 40.690 53.213 +0.17 Ra8b8 Rf1d1 Ba5b4 Ba3xb4
8 00:02 85.967 56.285 +0.29 Ra8b8 Nb1d2 Ba5xd2 Nf3xd2 Nc6xd4 Qb3g3
9 00:03 135.773 57.379 +0.29 Ra8b8 Nb1d2 Ba5xd2 Nf3xd2 Nc6xd4 Qb3g3
b7b5
9 00:03 174.643 60.213 +0.43 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5
10 00:04 238.373 62.975 +0.36 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Rc8b8
11 00:08 499.479 66.788 +0.50 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Rf1c1
12 00:13 857.907 71.492 +0.50 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Rf1c1
13 00:24 1.708.972 74.303 +0.52 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Bc4a6
14 01:04 4.297.793 69.319 +0.49 Qd8d7 Rf1c1 000 Bc4b5 Nd5c3 Bb5xc6 b7xc6
Qb3b2 Nc3e4 Qb2e2
15 02:05 8.367.972 69.156 +0.46 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Bc4b5+
16 03:45 15.568.314 71.088 +0.54 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Bc4a6
17 06:02 25.442.134 72.074 +0.44 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 d4xe5 Nd5f4 Bc4a6
18 10:17 43.262.138 71.864 +0.31 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 Bc4xd5 Be6xd5 d4xe5
19 33:22 136.332.744 69.771 +0.50 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8 Qb7xc8+
Ra8xc8 Bc4xd5 Be6xd5 d4xe5
20 1:06:44 273.989.285 70.091 +0.53 Qd8d7 Nf3e5
21 2:28:57 616.297.658 70.619 +0.56 Qd8d7 Nf3e5 Nc6xe5
22 5:35:01 1.392.960.919 70.964 +0.49 Qd8d7 Nf3e5
23 18:23:28 289.209.693 4.473 +0.36 Qd8d7 Nf3e5
12/23/2005 8:13:05 PM, Time for this analysis: 00:00:04, Rated time: 23:59:59
0 of 1 matching moves
12/23/2005 8:13:07 PM, Total time: 12:00:09 AM
Rated time: 23:59:59 = 86399 Seconds
--------------------------------------------------------------------------------
Analysis from E:\after_qb3.epd
12/22/2005 8:12:57 PM Level: Infinite
Analyzing engine: Fruit2.2.1
1) "After Qb3, is it eq
Avoid move:
Best move (Fruit2.2.1): Qd8-d7
Not found in: 23:59:59
2/13 00:00 1.383 0 +0.50 Ra8b8 Bc4d3
3/13 00:01 2.631 0 +0.30 Ra8b8 Ba3c5 Ba5b4
4/16 00:01 6.404 0 +0.39 Ra8b8 Rf1c1 h7h5 Bc4d3
5/16 00:01 13.343 0 +0.25 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 Nb1c3
Nd5xc3 Rc1xc3
6/19 00:01 55.982 0 +0.23 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 Bc4xd5
Nb4xd5 Qb3a4+ c7c6 Qa4xa7
6/19 00:01 103.091 0 +0.36 Qd8d7 Nb1d2 000 Nd2e4 Kc8b8 Ba3c5
7/19 00:01 140.697 0 +0.20 Qd8d7 Nb1d2 000 Nd2e4 Kc8b8 Ne4c5 Qd7c8
7/19 00:01 163.604 0 +0.23 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 Bc4xd5
Nb4xd5 Qb3a4+ c7c6 Qa4xa7
8/21 00:01 267.936 0 +0.25 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3 Nb4c6
Nb1c3 Nd5xc3 Qb3xc3 Be6xc4 Qc3xc4
8/21 00:01 357.298 0 +0.55 Qd8d7 Nb1d2 000 Nd2e4 Nd5b6 Bc4xe6 Qd7xe6
Qb3d3 Kc8b8
9/22 00:01 607.462 0 +0.16 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Ne5f3+ g2xf3
Ra8c8 Bc4a6 Rc8d8 Qb7xa7
9/26 00:02 805.967 710.000 +0.30 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4
Qb3a4+ c7c6 a2a3 b7b5 Qa4xa7 00 a3xb4 b5xc4
10/26 00:03 1.997.311 710.000 +0.20 Ra8b8 Rf1c1 h7h5 Qb3b2 h5h4 h2h3
Qd8d7 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4
11/30 00:05 3.562.963 712.000 +0.16 Ra8b8 Rf1c1 a7a6 Qb3b2 b7b5 Bc4b3
Qd8d7 Nf3g5 h7h6 Ng5xe6 Qd7xe6 Nb1d2 Ba5xd2 Qb2xd2
12/30 00:09 6.250.873 715.000 +0.19 Ra8b8 Rf1c1 a7a6 Qb3b2 b7b5 Bc4xd5
Qd8xd5 Nb1c3 Ba5xc3 Qb2xc3 Rb8b6 Ba3c5 b5b4 Qc3d3
13/36 00:20 14.269.672 725.789 +0.25 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
Bc4b5+ c7c6 a2a3 Qd8b6 Bb5c4 Nb4a6 Qb3xb6 a7xb6 Bc4xa6 b7xa6 Rc1xc6 Ke8e7
14/36 00:41 29.675.374 735.750 +0.31 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Qb3xc4 00 d4d5 Nc6e7 Qc4xc7 Qd8xc7 Rc3xc7
Ne7xd5
15/36 01:17 57.038.697 745.789 +0.34 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Qb3xc4 00 d4d5 Nc6e7 Ra1d1 Rf8e8 Qc4xc7 Ne7xd5
16/42 03:08 140.235.603 748.824 +0.34 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Qb3xc4 00 d4d5 Nc6e7 Ra1d1 Rf8e8 Qc4xc7 Ne7xd5
17/46 06:40 297.063.906 742.762 +0.39 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Qb3xc4 00 Ra1c1 Rf8e8 d4d5 Nc6e7 Rc3e3 Rb8c8
Rc1e1
18/46 12:12 548.450.630 749.589 +0.42 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Qb3xc4 00 Ra1e1 Rf8e8 Re1xe8+ Qd8xe8 d4d5 Nc6e7
Rc3c1 Qe8d8 Qc4xc7 Qd8xc7 Rc1xc7 Ne7xd5
19/48 19:26 876.594.128 751.704 +0.22 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Ra1e1+ Bc4e6 d4d5 00 d5xe6 Qd8f6 Rc3d3 f7xe6
Re1xe6 Qf6f7 Qb3c4 Rb8d8
20/58 42:03 1.915.071.818 759.205 +0.30 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Ra1e1+ Bc4e6 d4d5 00 d5xe6 Qd8e7 Rc3e3 Rf8d8
e6xf7+ Qe7xf7 Re3e6 Kg8h8 Qb3c4 Qf7f5
21/58 1:23:27 3.831.870,700 765.266 +0.32 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Ra1e1+ Bc4e6 d4d5 00 d5xe6 Qd8e7 Rc3d3
Rb8d8 Rd3xd8 Nc6xd8 e6xf7+ Qe7xf7 Qb3b5 a7a6 Qb5b4 Qf7d5
22/63 2:41:04 7.418.191,071 767.617 +0.09 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Ra1e1+ Bc4e6 d4d5 00 d5xe6 Qd8e7 Rc3d3
Rb8d8 Rd3c3 Nc6a5 Qb3c2 f7xe6 Rc3xc7 Rd8d7
22/63 3:20:11 9.291.589,209 773.598 +0.22 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Qb7xc8+ Ra8xc8 d4xe5 Nd5f4 Bc4a6 Rc8d8 Rf1c1 Rd8d5 g2g3 Nf4h3+ Kg1g2 Rd5xe5 f2f4
Re5d5 Ba6c4 Rd5h5 Bc4xe6 f7xe6 Nb1c3 c7c5 Ra1b1
23/66 4:46:50 13.427.863,953 780.253 +0.22 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Qb7xc8+ Ra8xc8 d4xe5 Nd5f4 Bc4a6 Rc8d8 Rf1c1 Be6f5 Ba6b5+ Bf5d7 Bb5a6 h7h5 g2g3
Rh8h6 Ba6c4 Nf4h3+ Kg1f1 Nh3g5 Bc4e2 Ng5e4 Kf1g2 Rd8b8
24/80 7:59:50 22.686.356,776 788.004 +0.20 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Qb7xc8+ Ra8xc8 d4xe5 Nd5f4 Bc4a6 Rc8b8 Ba3c5 Ba5b6 Rf1c1 Rb8d8 Nb1a3 Rd8d5 Bc5e3
Nf4g6 Na3b5 Ke8d8 Nb5xa7 Bb6xe3 Na7c6+ Kd8d7 f2xe3 Ng6xe5
25/80 15:48:59 45.325.343,493 796.032 +0.17 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Qb7xc8+ Ra8xc8 d4xe5 c7c5 Rf1d1 Nd5b4 Rd1c1 Be6xc4 Rc1xc4 Rc8d8 Kg1f1 Nb4d3
Nb1c3 00 Ra1d1 Rf8e8 Ba3xc5 Nd3xe5 Rd1xd8 Re8xd8 Rc4d4 Rd8b8 Nc3d1 a7a6
12/24/2005 8:14:02 PM, Time for this analysis: 00:00:03, Rated time: 23:59:59
0 of 1 matching moves
12/24/2005 8:14:03 PM, Total time: 12:01:06 AM
Rated time: 23:59:59 = 86399 Seconds
--------------------------------------------------------------------------------
Analysis from E:\after_qb3.epd
12/22/2005 8:12:57 PM Level: Infinite
Analyzing engine: Shredder9UCI
1) "After Qb3, is it eq
Avoid move:
Best move (Shredder9UCI): Ra8-b8
Not found in: 23:59:59
2/12- 00:00 306 455 -0.58 Ba5b6
2/12 00:00 361 537 -0.74 Ba5b6 Rf1e1
2/12+ 00:00 406 604 -0.68 Nd5f4
2/12 00:00 408 607 -0.68 Nd5f4 Bc4xe6 Nf4xe6 Qb3xb7 Ne6xd4
2/12+ 00:00 482 717 -0.62 Ra8b8
2/12 00:00 547 813 -0.45 Ra8b8 Rf1c1
3/12 00:00 1.163 1.730 -0.30 Ra8b8 Ba3c5 Ba5b4
4/14 00:01 3.460 5.029 -0.24 Ra8b8 Rf1c1 Ba5b4 Ba3xb4
5/13- 00:01 4.963 7.213 -0.49 Ra8b8 Rf1c1
5/19 00:01 6.917 10.053 -0.53 Ra8b8 Rf1c1 h7h6 Ba3c5 Ba5b4
6/17 00:01 21.325 29.053 -0.36 Ra8b8 Rf1c1 h7h6 Bc4b5 Nd5c3 Bb5xc6+
b7xc6 Qb3c2
7/20 00:01 79.306 89.007 -0.37 Ra8b8 Rf1d1 a7a6 Rd1c1 Qd8d7 Ba3c5
Nd5f4
8/19 00:01 139.685 137.485 -0.37 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nd5xc3 Qb3xc3
8/19+ 00:01 173.640 161.076 -0.36 Qd8d7
8/20+ 00:01 226.671 188.421 -0.01 Qd8d7
8/21 00:01 297.203 216.147 +0.22 Qd8d7 Nb1d2 000 Ba3c5 Nd5b6 Ra1b1
Rh8e8 Rf1d1 Ba5xd2 Nf3xd2 Be6xc4 Nd2xc4
9/25- 00:01 426.510 259.908 -0.03 Qd8d7 Nb1d2
9/25 00:02 467.451 271.931 -0.14 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Bc4xd5 Qc8xb7 Bd5xb7 Ra8b8 Bb7e4 Ne5c4
10/27 00:02 604.794 295.453 -0.31 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Ne5f3+
g2xf3 Nd5b6 Bc4xe6 f7xe6 Rf1d1 c7c6 Qb7a6
11/20 00:03 898.986 330.631 -0.31 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Ne5f3+
g2xf3 Nd5b6 Bc4xe6 f7xe6 Ba3c5 Ke8f7 Qb7e4 Ra8g8
11/25+ 00:03 1.312.734 359.062 -0.30 Ra8b8
11/25 00:04 1.534.523 366.409 -0.30 Ra8b8 Rf1c1 a7a6 Qb3d1
12/36 00:11 4.404.576 405.615 -0.20 Ra8b8 Bc4b5 Nd5b4 Qb3a4 00 Bb5xc6
Nb4xc6 Ba3xf8 Kg8xf8 Qa4c2 Kf8g8 Rf1d1 Qd8d6
13/26 00:15 6.453.238 419.722 -0.27 Ra8b8 Bc4b5 Nd5b4 Qb3a4 00 Bb5xc6
Nb4xc6 Ba3xf8 Kg8xf8 Qa4c2 Kf8g8 Rf1d1 Ba5b6 Qc2e4
14/29 00:26 11.613.951 437.997 -0.16 Ra8b8 Bc4b5 Nd5b4 Qb3a4 00 Rf1c1
Rf8e8
15/38 01:13 33.358.880 458.837 +0.04 Ra8b8 Nb1d2 Ba5xd2 Nf3xd2 Nc6xd4
Qb3g3 Nd4f5 Qg3b3 c7c6
16/38 02:15 61.785.497 457.142 +0.03 Ra8b8 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4
Qb3a4+ Nb4c6 Bc4b5
17/40 04:24 122.962.122 464.939 -0.16 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
b7b5 Bc4f1 Nb4c6 Bf1xb5 00 Qb3a4 Nc6e7 Rd1e1 Qd8d6 Nf3e5 Nd5b6 Qa4b4 Ne7f5 Ne5c6
Rb8b7
18/42 06:55 193.349.838 465.903 -0.08 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
b7b5 Bc4f1 Nb4c6 Qb3c2 Qd8d6 Nf3g5 Be6d7
19/41 13:46 384.558.652 465.241 -0.04 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
b7b5 Bc4e2 Nb4c6
20/49 25:57 725.898.170 466.141 +0.01 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nc6e7 Nc3xd5 Ne7xd5 Qb3a4+ c7c6 Qa4xa7 00 Rd1e1 Rf8e8 Bc4xd5 Qd8xd5
Re1e5
21/54 50:01 1.395.075.686 464.785 +0.06 Ra8b8 Rf1d1 Ba5b4 Ba3xb4 Nc6xb4 a2a3
Nb4c6 Nb1c3 Nc6e7 Nc3xd5 Ne7xd5 Qb3a4+ c7c6 Qa4xa7 00 Rd1e1 Rf8e8 Bc4xd5 Qd8xd5
Re1e5
22/53 1:49:14 3.035.920,080 463.172 +0.06 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Rc3e3+ Bc4e6 d4d5 Qd8f6 Ra1d1 Rb8d8 Rd1e1
00 d5xe6 Rd8b8 Re1d1
23/56 3:07:04 5.182.889,529 461.745 +0.06 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Rc3e3+ Bc4e6 d4d5 Qd8f6 Ra1d1 Rb8d8 Rd1e1
00 d5xe6 Rd8b8 Re1d1
24/57 5:24:28 9.003.053,213 462.448 +0.06 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Rc3e3+ Bc4e6 d4d5 Qd8f6 Ra1d1 Rb8d8 Rd1e1
00 d5xe6 Rd8b8 Re1d1
25/59 9:57:44 16.678.141,121 465.037 0.00 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Rc3e3+ Bc4e6 d4d5 Qd8f6 Ra1d1 Rb8d8 Rd1e1
00 d5xe6 Rd8b8 Re1d1
26/62 20:19:21 34.244.032,852 468.060 +0.07 Ra8b8 Rf1c1 Ba5b4 Ba3xb4 Nc6xb4
a2a3 Nb4c6 Nb1c3 Nd5xc3 Rc1xc3 Be6xc4 Rc3e3+ Bc4e6 d4d5 Qd8f6 Ra1d1 Rb8d8 Rd1c1
00 d5xe6 f7xe6 Qb3xb7 Nc6d4
12/25/2005 8:14:55 PM, Time for this analysis: 00:00:03, Rated time: 23:59:59
0 of 1 matching moves
12/25/2005 8:14:56 PM, Total time: 12:01:59 AM
Rated time: 23:59:59 = 86399 Seconds
However, it appears that white may have a better alternative than Qb3:
[D]r2qk2r/ppp2ppp/2n1b3/b2n4/2BP4/B4N2/P4PPP/RN1Q1RK1 w kq - c0 " is bm Qb3";
This analysis on a 950 MHz machine, so less than half as fast than the 2.2 GHz
analysis above:
Analysis from E:\egq.epd
12/22/2005 4:16:14 PM Level: 86400 Seconds
Analyzing engine: Rybka v1.0 Beta.w32
1) Qb3";
Searching move: Qd1-b3
Best move (Rybka v1.0 Beta.w32): Nb1-d2
Not found in: 24:00:00
3 00:01 498 16.450 -0.26 Nb1d2
3 00:01 1.878 17.324 -0.19 Qd1b3
4 00:01 2.425 15.423 -0.30 Qd1b3
4 00:01 2.895 15.440 -0.26 Nb1d2
5 00:01 7.475 17.317 -0.23 Nb1d2 Ba5b4
6 00:01 14.336 18.078 -0.19 Nb1d2 Ba5b4 Ba3xb4
7 00:02 28.616 19.367 -0.17 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1b3
8 00:03 51.556 20.582 -0.19 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1b3 Ra8b8
9 00:05 104.157 22.000 -0.30 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00
9 00:08 166.551 21.689 -0.29 Qd1b3 Ra8b8 Nb1d2 Ba5xd2 Nf3xd2 Nc6xd4
Qb3g3
10 00:16 343.731 22.915 -0.43 Qd1b3 Qd8d7 Nf3e5 Nc6xe5 Qb3xb7 Qd7c8
Qb7xc8+ Ra8xc8 d4xe5
10 00:19 418.176 23.232 -0.34 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Rf1e1 00 Qd1b3
Ra8b8
11 00:38 839.268 23.313 -0.26 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Rf1e1 Nb4c6
12 00:57 1.267.051 23.463 -0.29 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Rf1e1 Nb4c6
13 01:46 2.439.994 23.689 -0.30 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Nf3e5 Qd7d6
14 03:33 4.939.087 23.860 -0.24 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Nf3e5 Qd7d8
15 07:29 10.201.623 23.344 -0.25 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 Nb4c6 Qb3xb7 00
16 16:10 21.399.610 22.597 -0.24 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Nf3e5 Qd7d6
17 35:01 44.514.234 21.703 -0.23 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Nf3e5 Qd7d6
18 1:12:22 91.130.070 21.498 -0.25 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Nb4c6
Bc4a6 Qd8c8 Nf3e5 00
19 3:04:04 210.402.967 19.508 -0.25 Nb1d2 Ba5b4 Ba3xb4 Nc6xb4 Qd1a4+ Qd8d7
Qa4b3 00 Nf3e5 Qd7d8
20 7:05:21 519.125.271 20.830 -0.25 Nb1d2 Ba5b4 Ba3xb4
12/23/2005 4:16:19 PM, Time for this analysis: 00:00:02, Rated time: 24:00:00
0 of 1 matching moves
12/23/2005 4:16:20 PM, Total time: 12:00:06 AM
Rated time: 24:00:00 = 86400 Seconds
This analysis also shows a small advantage for black, even after the alternative
choice.
At any rate, it appears that the theory and analysis agree, 8.cxd4 d5 9.exd5
Nxd5 10.Ba3 Be6 11.Qb3
is about equal (as well as a good looking alternative).
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