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Subject: Re: An exchange sacrifice...

Author: Uri Blass

Date: 00:39:28 08/24/04

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On August 24, 2004 at 00:23:38, Eric Jensen wrote:

>I have recently come across the following position,
>
>/r5k/pp2qppp/2b/n/2pPr/P1P1PQ1P/1B4P/1B2RRK/
>
>with white to move.  It will be white's 21st move.  I have let crafty run and
>analyze this position for over 2 hours, and it returns a value of over +2 for
>white.  However, I don't think that crafty understands the position, because
>I've had it sort of play against itself (I was using SCID for analysis, and
>pulled up the engine analysis with crafty) by making it's best move for each
>side after about a min or so each time, and it routinely wins with black.
>
>I would be interested to see a Deep Position evaluation of hte position from
>Shredder or Junior or something Stronger than Crafty, but also I would be
>interested in seeing games from a short engine match with this start position,
>just to see if the evaluations can be trusted.  I don't really have the software
>to pull this off on my own, but if it piques anyone's interest and they'd like
>to post a follow-up, please do!


When you have FEN you need to have 8 places in every rank on the board and I see
that your ranks have less places.

I guess that you mean

[D]r5k1/pp2qppp/2b5/n7/2pPr3/P1P1PQ1P/1B4P1/1B2RRK1 w - -  0 1

I got this position simply by adding the number of empty places at the end of
every rank.

I wonder why you omit the last number in every rank.

Uri



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