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Subject: Re: Bad bishop

Author: Dave Gomboc

Date: 21:26:34 10/20/03

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On October 19, 2003 at 12:59:05, Jorge Pichard wrote:

>On October 18, 2003 at 13:26:34, Dan Andersson wrote:
>
>> Here is a reminder not to take positional factors at face value. This is from a
>>team game today with me as white. I'm uncertain if this is a won position but it
>>is no doubt that the 'bad' white bishop is in the drivers seat. It would be
>>interesting to get the output from your favourite engines gentlemen.
>>[D]8/2b4p/k1p1p3/1pP1P1pP/4K1P1/PpB5/1P6/8 w - -
>>
>>MvH Dan Andersson
>>
>>PS The opening was an Alekine and a quick 30s-2m blundercheck yielded the
>>curious result that there were no obvious tactical errors in the game.
>>DS
>
>
>
>  I just finished my experimental program Blitzer a couple of hours ago after 8
>months of frustrating and hard working hours on my spare time, and after 02:15
>it shows a permanent -2.09 score.
>
>
>Blitzer UCI 28 MB:
>D1  00:00  -0.67   Bb8xe5+ Kc3c2
>D2  00:00  -0.65   Bb8xe5+ Kc3b3 Be5f4
>D3  00:00  -0.63   Bb8xe5+ Kc3b3 Be5d4 Kb3c2
>D4  00:00  -0.53   Bb8xe5+ Kc3b3 Be5d4 Bd2e1 e6e5
>D5  00:00  -0.50   Bb8xe5+ Kc3b3 Be5d4 Bd2e1 e6e5 Be1d2
>D6  00:00  -0.42   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d4 Bd2e1 Be5f4 Be1c3+ Kd4e4
>D7  00:00  -0.45   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d4 Bd2e1 Kd4e4 b4b5 c6xb5
>D8  00:00  -0.52   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Kc2d3 Be5d4 Bd2e1 e6e5 Be1d2
>D9  00:00  -0.38   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Kc2d3 Be5d4 b4b5 Bd4xc5 b5xc6
>Kd5xc6 Kd3e4
>D10  00:00  -0.46   Bb8xe5+ Kc3b3 Be5d4 Bd2e1 e6e5 Be1c3 Bd4xc3 b2xc3 Kb5a6 c3c4
>Ka6b7 b4b5
>D11  00:00  -0.27   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Kc2d3 Be5d4 b4b5 Bd4xc5
>b5xc6 Bc5d6 b3b4 Kd5xc6 Bd2c3
>D12  00:02  -0.35   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Bd2e1 Be5f6 Be1f2 e6e5 b4b5
>c6xb5 Bf2e3 e5e4 Kc2d2
>D13  00:03  -0.46   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Bd2c3 Be5d4 Kc2d3 Bd4xc3
>Kd3xc3 e6e5 Kc3d3
>D14  00:07  -0.40   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Kc2d3 Be5g3 b4b5 c6xb5 b3b4
>e6e5 Bd2c3
>D15  00:16  -0.36   Bb8xe5+ Kc3b3 Be5g3 Kb3c2 Kb5c4 Bd2c3 e6e5 Kc2d2 Bg3f4+
>Kd2e2 Kc4d5 b2b3 Bf4c1 b4b5 c6xb5 c5c6 Kd5xc6 Bc3xe5
>D16  00:41  -0.53   Bb8xe5+ Kc3c2 Kb5c4 b2b3+ Kc4d5 Bd2c3 Be5d4 b4b5 Bd4xc3
>Kc2xc3 c6xb5 b3b4 e6e5 Kc3d3 e5e4+ Kd3e3 Kd5e5 Ke3d2 Ke5d5 Kd2e3
>D17  00:58  -0.58   Bb8xe5+ Kc3c2 Kb5c4 Bd2c3 Be5d4 Bc3xd4 Kc4xd4 b4b5 Kd4xc5
>b5xc6 Kc5xc6 Kc2d3 Kc6d5 b2b4 Kd5c6 Kd3d4 Kc6c7 Kd4e5 Kc7d7
>D18  01:38  -0.93   Bb8xe5+ Kc3c2 Kb5c4 Bd2c3 Be5d4 b2b3+ Kc4d5 Kc2d3 e6e5
>Bc3xd4 e5xd4 b4b5 c6xb5 b3b4 Kd5e5 c5c6 Ke5d6 Kd3xd4 Kd6xc6 Kd4e5 Kc6b7 Ke5f5
>Kb7c6
>D19  02:01  -1.56   Bb8xe5+ Kc3c2 Kb5c4 Bd2c3 Be5d4 b2b3+ Kc4d5 Kc2d3 e6e5
>Bc3xd4 e5xd4 b4b5 c6xb5 b3b4 Kd5e5 c5c6 Ke5d6 Kd3xd4 Kd6xc6 Kd4e5 Kc6b7 Ke5f5
>Kb7c6
>D20  02:15  -2.09   Bb8xe5+ Kc3c2 Kb5c4 Bd2c3 Be5d4 b2b3+ Kc4d5 Kc2d3 e6e5
>Bc3xd4 e5xd4 b4b5 c6xb5 b3b4 Kd5e5 c5c6 Ke5d6 Kd3xd4 Kd6xc6 Kd4e5 Kc6b7 Ke5f5
>Kb7c6
>
>
>Jorge

Either the position wasn't set up correctly, or you've got bugs! :-/

Dave



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