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Subject: Re: Good Test Position, the "ply 16 rook sac"

Author: John Merlino

Date: 11:12:25 09/20/00

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On September 20, 2000 at 13:18:20, James wrote:

>This position turns out to be an excellent comparitor ofd chessmaster versions.
>My puter is 733 Piii, not overclocked with 512 meg of ram. Tested cm55 and cm6k
>using cm default but with select 10, and ttables set to 30. results:
>cm55 found mate in 14 at 33 min 45 seconds < about 20 sec into ply 13> and at 20
>seconds into ply 13, cm6k still found m n 16 at 58 minutes and 45 seconds.
>  My play formula on cm55 found it in 31 min and 30 seconds. Am sure other
>programs could see it faster, if anyone does any comparitive tests on their
>system, would be interested in the results.  IF cm8000 is as efficient as cm55,
>and has 12 ply selectivity, it could maybe see it in 10 minutes or so i think.
>  This position seems to be another that begs the question : what is a ply : ?

What is the position? I can test it on a Beta build of CM8000....

jm



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