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Subject: Re: Mate to solve for good program.

Author: leonid

Date: 09:38:20 06/10/01

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On June 10, 2001 at 01:02:37, Angrim wrote:

>On June 08, 2001 at 18:21:53, leonid wrote:
>
>>Hi!
>>
>>If you want to solve this position, it will be easy only if your program is good
>>in mates.
>>
>>[D]1r1qkq1r/Q2nqn1Q/NQ2b1QN/qqQ1bQqq/BQ4QB/q6q/3RQR2/4K3 w - -
>>
>>Please indicate your result.
>
>result: I gave up.  I let my pn^2 searcher run for 380meg nodes,
>and no mate found.  There must be a really huge number of possible
>lines where white is giving repeated check here.
>
>Much harder than the two from yesterday(for pn search) :)

Very interesting what you are saying. Never mind that this position your solver
consider as too long to search. Sometime it is the same for me. What I see is
that you write your solver probably like I did. I started with creation of
selective search that mainly looked lines that start with checking moves. Later
other selective search and brute force variation was added. I am sure that it is
only a time before your not checking variation of mate solver will become more
efficent.

Cheers,
Leonid.



>>Cheers,
>>Leonid.



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