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Subject: Re: Help needed: How can I search a 6 piece position by Nalimov tablebases?

Author: Vasik Rajlich

Date: 03:54:48 12/04/04

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On December 03, 2004 at 23:30:38, Tansel Turgut wrote:

>I am looking for the evaluation of a specific 6 piece ending position. It is not
>in the available tablebases.
>
>I entered the position on lokosoft website. It says that this position is not
>analyzed.
>
>Does anyone know how I can analyze this position? How can I create a specific
>kind of analysis tool to analyze this position?
>
>The position:
>8/7B/8/n5k1/8/2P5/7P/6K1 b - -
>
>is this a draw (with wrong colored bishop+ pawn)? can black sacrifice his knight
>for the c3 pawn?
>
>best regards,
>Tansel Turgut

One computer trick is to let the position run overnight and if the scores you
get haven't skyrocketed it's probably drawn. That is, if white is promoting a
pawn here then a 30-ply search should be able to find it.

You might even try it with an a-pawn instead of c-pawn just to see roughly how
many plies are needed to find a clear win.

For what it's worth - I'd guess draw. Ie. 1. .. Nc4 2. Kf2 Kg4 or 2. Kg2 Kf4.

Vas



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