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Subject: Re: A test position for chess programs(importance of tablebases)

Author: Dieter Buerssner

Date: 19:25:46 01/19/01

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On January 19, 2001 at 19:13:56, Vincent Diepeveen wrote:

>Uri again like all positions of yours,
>this is NOT a forced combination.
>
>It's unforced.
>
>All you need is searchdepth, 1M nodes a second.
>A material evaluation, not even piece square tables
>needed, and not a single extension.

Vincent, I cannot see at all, how this applies to the position of this
discussion. I am not sure, if Rc3 draws here, but certainly Rb6 will loose.
Without TBs, my engine can see the loss of a pawn after Rb6 and after Rc3.
Nevertheless, with TBs rather soon it is seen, that Rb6 is leading to a forced
mate, while this is not seen for Rc3. Actually, without TBs, after Rb6 and
after Rc3 I get essentially the same scores at the same search depth. I have
no idea, how Rb6 can be avoided based on a material evaluation only.

-- Dieter




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