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Subject: Re: Info on 6 ply project

Author: Bas Hamstra

Date: 17:20:41 07/04/01

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On July 04, 2001 at 01:00:38, Uri Blass wrote:

>On July 03, 2001 at 18:17:36, Bas Hamstra wrote:
>
>>On July 03, 2001 at 17:18:25, Uri Blass wrote:
>>
>>>On July 03, 2001 at 16:59:02, Bas Hamstra wrote:
>>><snipped>
>>>>Personally I have a problem believing it is possible to maintain such a rating
>>>>while searching 4 ply.
>>>
>>>I have no problem to believe that it is possible to maintain such a rating while
>>>searching 4 plies.
>>>
>>>You only need to call the rest of the plies in the name: "extensions".
>>>
>>>Uri
>>
>>That is hardly possible. At first I would say it is impossible to search only 4
>>4 "quiet" positional moves and still survive. What about a subtil tactic made
>>out of many quitet moves? But then again, Genius does quite an impressive job
>>with only 6 ply positional and a huge tactical search on top of that. Ok,
>>possible in principal, but very difficult.
>
>I guess that you do not have chessmaster6000
>It shows very small depthes in the first number
>chessmaster6000(ss=10) is even worse and often needs some minutes to get into
>depth 2.
>
>Chessmaster6000 shows 2 numbers.
>I guess that the first number is the brute force and the second number is search
>with null move pruning.
>
>depth 1/11 means 1 ply brute force and 11 plies with null move
>pruning+extensions so the main line is usually more than 11 plies.
>
>If you call search with null move pruning extensions you have no problem to see
>that chessmaster(ss=10) is searching usually less than 4 plies in the middle
>game.
>
>It is only a question of definitions
>
>Uri

If you call search with nullmove pruning extensions? Except this is nonsense, I
think you misinterprete those 1/11 numbers.

Bas.

















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