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Subject: Re: Congratulations Bob!

Author: Eugene Nalimov

Date: 17:12:37 08/14/05

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On August 14, 2005 at 20:08:21, Uri Blass wrote:

>On August 14, 2005 at 18:01:28, Robert Hyatt wrote:
>
>>On August 14, 2005 at 17:00:02, Bernhard Bauer wrote:
>>
>>>On August 14, 2005 at 16:47:43, Darrel Briley wrote:
>>>
>>>>On August 14, 2005 at 15:22:43, Graham Banks wrote:
>>>>
>>>>>Best wishes for the remaining games. It would be really good for this to be the
>>>>>best Crafty ever! Fingers and toes crossed!
>>>>>
>>>>>Graham.
>>>>
>>>>1.5 with two blacks vs. Shredder and Junior.  Impressive indeed.
>>>>Congratulations Bob!
>>>>
>>>>                         DB
>>>
>>>As Bob has pointed out earlier this is pure luck.
>>>Crafty has serios tactical weaknesses as all the
>>>computer chess specialists know. Crafty is not even commercial,
>>>so how can this be explainded in any other way, but luck?
>>>Perhaps Bob has found a very old version and is running this now, 6.4?
>>>
>>>Anyway congratulations and
>>>Kind regards
>>>Bernhard
>>
>>
>>I'd bet that those "serious tactical weaknesses" are not to be found on this
>>hardware, at least until someone is searching far faster than I am...
>
>Tactical weaknesses can be found also in software.
>
>>
>>Crafty's "serious tactical weaknesses" are more urban legend than fact...
>
>Comparing Crafty with fruit Crafty does not do checks in the first ply of the
>qsearch when fruit does it and Crafty does not use history based pruning when
>fruit does it.
>
>I think that these are relative weaknesses and using the ideas of fruit may help
>Crafty to be better in tactics.

Those are not "ideas of fruit". Both are mentioned in the 1977 computer chess
book written by KAISSA authors.

Thanks,
Eugene

>Hardware is important to see deeper but there are also other factors.
>
>Uri



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