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Subject: Re: Test Position: deFirmian-Miles -- Mate in 11

Author: Gian-Carlo Pascutto

Date: 01:16:57 11/14/01

Go up one level in this thread


On November 14, 2001 at 04:08:24, Uri Blass wrote:

>On November 14, 2001 at 04:00:24, Gian-Carlo Pascutto wrote:
>
>>On November 14, 2001 at 02:32:43, Dann Corbit wrote:
>>
>>>How do I read the distance to mate from this?
>>>There is a mate in 10.
>>
>>My matefinder has no concept of plies,
>>and hence mate depth is irrelevant for it.
>>
>>The solution and first move are guaranteed to be correct though.
>>
>>--
>>GCP
>
>I guess that it has a tree to prove the mate.
>
>What is the problem to calculate the number of plies in the longest line that
>ends in mate in that tree?

That value doesn't learn you much.

If it picks a suboptimal solution, it may find a mate in 100 somewhere
in the tree.

You can get nearly the same info now by looking at 'MaxDepth', which
is the deepest line it visited. Since it was 27 ply, the mate it found
cannot be deeper than 13 moves.

This does not mean there cannot be a shorter mate.

--
GCP



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