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Subject: Re: THE 16 PLY CHALLENGE!

Author: Christophe Theron

Date: 19:05:25 09/14/00

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On September 14, 2000 at 14:46:17, Dann Corbit wrote:

>On September 14, 2000 at 14:36:41, Christophe Theron wrote:
>
>>On September 14, 2000 at 14:33:49, Dann Corbit wrote:
>>
>>>On September 14, 2000 at 14:30:07, Dan Ellwein wrote:
>>>[SNIP]
>>>>I guess it would be impractical to run this test with opening book disabled...
>>>>
>>>>(startin' with the very first move have the computer think on its own)...
>>>>
>>>>but i wonder what the data would look like if you did...
>>>>
>>>>it may be that there would not be a cut-off at iteration 19...
>>>
>>>My guess is that in the first ten moves no program on earth can get to ply 19
>>>unless it does a ludicrous amount of speculative pruning.  Even 16 plies would
>>>be formidable.
>>
>>
>>We are close.
>
>Are we really?
>
>Let this run on the very fastest machine available to you:
>[D]r4r2/q1pb1pkp/1p1p2p1/2nPpP1P/2P1P3/p1N2P2/PP1Q4/2KR1BR1 w - -
>
>Please let me know when it gets to ply 16
>;-)



You were talking about the first positions of the game. Now you come up with a
complex mating problem.

I can find even more complex positions where no program can reach ply depth 10
in a reasonnable time...


    Christophe



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