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Subject: Re: position analysis help

Author: Christian Koch

Date: 04:14:54 02/13/05

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On February 13, 2005 at 06:46:23, Daniel Shawul wrote:

>On February 13, 2005 at 06:12:44, Christian Koch wrote:
>
>>On February 13, 2005 at 05:40:45, Daniel Shawul wrote:
>>
>>>the following position  occured in the game b/n DanChess and Yace at cct7
>>>danchess played here c4!?
>>>i am not sure if it really is the best move. Took over 5 minutes to find it with
>>>a clear score (+46).
>>>
>>>
>>>[D]r1bq1k1r/3nbppp/1n1Np3/8/4P1P1/4BP2/PPPQ3P/2KR1B1R w - - 0 1
>>>
>>>DanChess analysiz
>>>13 14 9746 62835077 1. Kb1 Qc7 2. h4 Ne5 3. Nb5 Qc6 4. Qd4 Nbc4 5. Na7 Qd7 6.
>>>Bxc4 Qxd4 7. Rxd4 Rxa7
>>>13 14 12891 83403003 1. Kb1 Qc7 2. h4 Ne5 3. Nb5 Qc6 4. Qd4 Nbc4 5. Na7 Qd7 6.
>>>Bxc4 Qxd4 7. Rxd4 Rxa7
>>>13 60 31055 207412142 1. c4 Ne5 2. c5 Nbd7 3. Be2 Qc7 4. b4 Bxd6 5. Qxd6+ Qxd6
>>>6. Rxd6 Rxa2 7. Re1 Ra1+ 8. Kd2 Ra7
>>>
>>>any other engine choosing c4?
>>>
>>>daniel
>>
>>Hell Daniel,
>>
>>here is the analysis from Shredder 9 UCI:
>>
>>
>>r1bq1k1r/3nbppp/1n1Np3/8/4P1P1/4BP2/PPPQ3P/2KR1B1R w - -
>>
>>Engine: Shredder 9 UCI (384 MB)
>>by Stefan Meyer-Kahlen
>>
>>9/19   0:01   -0.11    1.a3 Qc7 2.Bb5 Kg8 3.Bxb6 Nxb6 4.Be8 Bxd6
>>                       5.Qxd6 Qb7 6.Bc6 (488.863) 272
>>
>>10/21  0:03   -0.04    1.a3 Qc7 2.Nb5 Qc6 3.Nd6 (857.189) 278
>>
>>11/31  0:08   -0.24    1.a3 Ba6 2.Bf4 Bxf1 (2.285.337) 280
>>
>>11/31  0:08   -0.23++  1.Kb1 (2.482.904) 280
>>
>>11/31  0:10   -0.09    1.Kb1 Qc7 2.Bb5 Ne5 3.Qd4 Nd5 4.exd5 Qxd6
>>                       5.dxe6 Qxd4 6.Bxd4 Nxf3 (2.821.255) 279
>>
>>12/25  0:14   -0.08    1.Kb1 Qc7 2.Bb5 Ne5 3.Qd4 Nd5 4.exd5 Qxd6
>>                       5.dxe6 Qxd4 6.Bxd4 Nxf3 7.Rhf1 (4.109.515) 283
>>
>>13/27  0:25   -0.16    1.Kb1 Qc7 2.Bb5 Ba6 3.Bxd7 Nxd7
>>                       4.Nxf7 Kxf7 5.Qxd7 Rhc8 6.Qxc7 Rxc7
>>                       7.f4 Bc4 (7.252.302) 286
>>
>>14/31  0:46   -0.15    1.Kb1 Qc7 2.Nxc8 Rxc8 3.Ba6 Rb8
>>                       4.Qa5 Nc5 5.Be2 Nca4 (13.344.650) 284
>>
>>15/36  1:23   -0.07    1.Kb1 Qc7 2.Nxc8 Rxc8 3.Ba6 Rb8
>>                       4.Qa5 Bd6 5.Rd3 (23.612.980) 284
>>
>>16/40  3:35   -0.12    1.Kb1 Qc7 2.Bg5 f6 3.Bf4 e5 (61.041.762) 283
>>
>>best regards,
>>Christian
>
>Thanks Christian.
>DanChess (not cct version) still hangs on c4 after 35 minutes of analysis on
>a slower hardware.
>I think it is not a blunder ,at least from danchess's point of view.
>
>DanChess  WB2 29 MB:
> 5   00:00  0.49   1. Kb1 Qc7 2. Qb4 Kg8 3. h4
> 6   00:00  0.27   1. Kb1 Qc7 2. Nxc8 Qxc8 3. Bb5 Kg8 4. h4
> 7   00:01  0.64   1. Kb1 Qc7 2. Nxc8 Qxc8 3. Bb5 Ra7 4. Qg2 Ra8
> 8   00:02  0.67   1. Kb1 Qc7 2. Nxc8 Rxc8 3. Bb5 Rd8 4. Qa5 Ra8 5. Ba6
> 9   00:03  0.48   1. Kb1 Qc7 2. Nxc8 Rxc8 3. Bb5 Rd8 4. Qa5 Ra8 5. Rxd7 Rxa5 6.
>Rxc7 Rxb5 7. Bxb6 Rxb6
>10   00:08  0.48   1. Kb1 Qc7 2. Nxc8 Rxc8 3. Bb5 Rd8 4. Qa5 Ra8 5. Rxd7 Rxa5 6.
>Rxc7 Rxb5 7. Bxb6 Rxb6
>11   00:24  0.39   1. Kb1 Qc7 2. Nxc8 Rxc8 3. h4 Bc5 4. Bg5 Kg8 5. Bb5 Ne5 6.
>Qc3 Ra8
>12   01:29  0.40   1. Kb1 Qc7 2. Bg5 f6 3. Be3 Kg8 4. Nxc8 Qxc8 5. Bb5 Bc5 6.
>Bxc5 Nxc5 7. Qd6 Nca4
>13   03:00  0.27   1. Kb1 Qc7 2. Bg5 f6 3. Be3 Kg8 4. Nxc8 Rxc8 5. Bb5 Ne5 6.
>Qf2 Nbc4 7. h4 Ra8
>13   04:11  0.55   1. c4 Qc7 2. b4 Ne5 3. Bc5 Nbd7 4. Nb5 Qd8 5. Bxe7+ Qxe7 6.
>Be2 Kg8 7. c5 Bb7 8. Nd6
>14   06:50  0.43   1. c4 Qc7 2. b4 Ne5 3. Bc5 Nbd7 4. Nb5 Qd8 5. Bxe7+ Qxe7 6.
>Be2 Kg8 7. c5 Bb7 8. Nd6 Bc6
>15   21:19  0.68   1. c4 Ne5 2. Kb1 Qc7 3. c5 Nbd7 4. Qf2 Kg8 5. Bb5 Ba6 6. a4
>Nc6 7. Qg3 Bxb5 8. axb5 Bxd6 9. Qxd6
>16   35:27  0.56   1. c4 Ne5 2. Kb1 Qc7 3. c5 Nbd7 4. Qf2 Kg8 5. h4 Ba6 6. Bxa6
>Rxa6 7. Qe2 Ra8 8. f4 Ng6 9. Nb5
>
>regards
>daniel

Hi Daniel,

here is the analysis from Shredder 9 UCI after 1.c4


r1bq1k1r/3nbppp/1n1Np3/8/2P1P1P1/4BP2/PP1Q3P/2KR1B1R b - -

Engine: Shredder 9 UCI (384 MB)
by Stefan Meyer-Kahlen

1/03   0:00   -0.72--  1...Bxd6 (5) 0

1/07   0:00   -0.76    1...Bxd6 2.Qxd6+ Kg8 3.Bxb6 Qxb6
                       4.Qxb6 Nxb6 (16) 1

1/07   0:00   +0.16++  1...Rxa2 (24) 1

1/07   0:00   +1.11++  1...Rxa2 (30) 1

1/07   0:00   +2.00    1...Rxa2 (36) 2

2/05   0:00   +1.76    1...Rxa2 2.Qc3 (126) 3

3/13   0:00   +1.89    1...Rxa2 2.Kb1 Ra8 (695) 21

4/10   0:00   +1.78    1...Rxa2 2.Kb1 Ra4 3.b4 (1.538) 32

5/14   0:00   +1.53--  1...Rxa2 2.Kb1 (2.993) 63

5/15   0:00   +1.34    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 (4.764) 75

6/16   0:00   +1.09--  1...Rxa2 2.Kb1 (7.922) 101

6/16   0:00   +1.06    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.Qc2 (10.307) 132

7/18   0:00   +0.88    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.Bb5 Ne5
                       5.Rhf1 (31.308) 199

8/18   0:00   +0.90    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.c6 Ndc5
                       5.Bb5 Nb3 (70.292) 236

9/18   0:00   +1.15++  1...Rxa2 2.Kb1 (92.767) 237

9/20   0:00   +1.20    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.Bb5 Ne5
                       5.Qc2 Bd7 6.Rhf1 (119.262) 254

10/21  0:00   +0.95--  1...Rxa2 2.Kb1 (224.670) 271

10/25  0:01   +0.95    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.c6 Ndc5 (333.093) 280

11/25  0:02   +0.84    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.c6 Ndc5
                       5.Bb5 Ra8 6.Qd4 Qxd6 7.Qxd6 Bxd6 (727.068) 283

12/28  0:06   +0.72    1...Rxa2 2.Kb1 Ra7 3.c5 Na4 4.Bb5 Naxc5
                       5.Qb4 Ba6 6.Bxc5 Nxc5 7.Nxf7 Nd3
                       8.Nxd8 Nxb4 (1.917.270) 291

13/26  0:10   +0.47--  1...Rxa2 2.Kb1 (3.135.924) 291

13/33  0:22   -0.03--  1...Rxa2 2.Kb1 (6.330.495) 284

13/33  0:26   -0.29    1...Rxa2 2.Kb1 Ra7 3.c5 Na8 4.Bb5 Nb8
                       5.Qc3 (7.575.994) 288

13/33  0:28   -0.28++  1...Qc7 (8.131.571) 288

13/33  0:29   +0.07++  1...Qc7 (8.431.398) 288

13/34  0:38   +0.54    1...Qc7 2.Kb1 Ba6 3.b3 Qc6 4.Bg2 Bxc4
                       5.bxc4 Nxc4 6.Nxc4 Qxc4 7.Bd4 Kg8 (10.916.744) 280

14/30  0:57   +0.64    1...Qc7 2.Kb1 Ba6 3.Bf4 e5 4.Bg5 f6
                       5.Be3 Nc5 6.Qb4 (15.794.251) 274

15/31  1:18   +0.61    1...Qc7 2.Kb1 Ba6 3.Bf4 e5 4.Bg5 f6
                       5.Be3 Rd8 6.Qa5 Bxd6 7.Qxa6 Kg8
                       8.Be2 Nc5 (21.656.932) 276

16/37  2:03   +0.64    1...Qc7 2.Kb1 Ba6 3.Bf4 e5 4.Be3 Rd8
                       5.Qa5 Bxd6 6.Qxa6 Bc5 7.Bg5 Ra8
                       8.Qb5 Kg8 9.Be2 (34.533.642) 279

17/37  4:04   +0.46    1...Qc7 2.Kb1 Ba6 3.Bf4 e5 4.Be3 Kg8
                       5.b3 Rb8 6.Ka1 f6 7.Be2 Qc6 8.Rhf1 (67.392.211) 275

18/40  7:59   +0.50    1...Qc7 2.Kb1 Ba6 3.Bf4 e5 4.Be3 Rb8
                       5.Nf5 Bc5 6.b4 Kg8 7.Bxc5 Nxc5 8.b5 Nba4
                       9.Qd6 Qxd6 10.Rxd6 g6 11.Ne7+ Kg7 (133.800.843) 279





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