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Subject: Re: Public release of Crafty

Author: Harald Faber

Date: 00:41:30 07/28/99

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On July 27, 1999 at 13:42:18, José de Jesús García Ruvalcaba wrote:

>On July 27, 1999 at 09:36:14, Robert Hyatt wrote:
>
>>On July 27, 1999 at 06:16:36, Vincent Lejeune wrote:
>>
>>>Bob, Crafty 16.13 had the highest rating on ICC never reach by any other
>>>version, and we discovered now after the public release that it contains bug.
>>>How is it possible ?
>>>Did you put an other version that wich one played on ICC ?
>>
>>Nope..  16.13 hit 3249 or whatever. the 'bug' is _very_ difficult to produce,
>>it requires a lot of pieces on the board, including a queen, and it requires
>>one king to reach the other side's first rank, and be on the side of the board
>>with no pawns of any kind.  I don't think there are _any_ programs running
>>today that have _no_ errors/bugs of any kind.  when you have 50,000 lines of
>>C, the probability that one line has a bug is almost 1.0....
>>
>>
>>>
>>>Other reamark : we have more observations and feed back about Crafty when the
>>>chessbase engine is available.
>>>
>>>Does anybody knows what king of transformation the chessbase team made on Crafty
>>>source to make the crafty.eng ?
>>>How much work that require ?
>>
>>no clue...
>
>	If Chessbase modifies Crafty, isn't it supposed to publish the changes?

Crafty isn't modified, it is just converted into a Fritz engine.



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