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Subject: Re: Two interesting snapshots from a little fun-match Crafty-Tiger

Author: Robert Hyatt

Date: 15:16:30 08/13/00

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On August 13, 2000 at 15:21:17, Alvaro Rodriguez wrote:

>On August 13, 2000 at 15:09:02, Robert Hyatt wrote:
>
>>On August 13, 2000 at 13:01:27, Jon Dart wrote:
>>
>>>>This is an interesting move IMHO as the bishop doesn't get lost at all , it
>>>>simply can't participate in the game anymore ; in fact it lasts until the 46th
>>>>move when white finally wins the bishop . It seems to me without special code >it is impossible to avoid this ( for example Fritz 6a would play like that
>>>> too) .
>>>
>>>Crafty has had special-case code to avoid this kind of move for some
>>>time.
>>>
>>>--Jon
>>
>>
>>Even more interesting, because it understands that problem, it will leave
>>the pawn 'hanging' because it thinks no one is silly enough to take it.  If
>>a program doesn't have that bit of knowledge, it almost looks like Crafty
>>tries to 'tempt it'.  :)
>>
>>I see that against more than one program on ICC, pretty regularly...
>
>Is it hard to implement that in a program? Because maybe other programmers
>should think about it, because like you said, no one is silly enough to take it
>:-)
>
>When you see those games in ICC, does crafty win them ?
>
>Regards,
>Alvaro

Most of the time it wins.  On occasion there is some long and complicated way to
safety get the bishop out.  Which means Crafty has simply gambited a pawn away
for nothing.  But these cases are very rare.  A bishop at a2, with a white pawn
at b3 that is supported, is in great trouble.



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