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Subject: Re: detecting and evaluating pins

Author: martin fierz

Date: 08:23:11 02/24/04

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On February 24, 2004 at 11:16:21, Robert Hyatt wrote:

>On February 24, 2004 at 10:48:47, martin fierz wrote:
>
>>On February 23, 2004 at 13:29:08, Vincent Diepeveen wrote:
>>
>>>On February 23, 2004 at 10:02:37, Russell Reagan wrote:
>>>
>>>>On February 23, 2004 at 07:02:59, martin fierz wrote:
>>>>
>>>>>aloha,
>>>>>
>>>>>i have a question about pins. pins are a rather important feature in chess; some
>>>>>of them are not so bad, some are deadly. i just happened to chat briefly with
>>>>>anthony cozzie on ICC, and he said he didn't do any pin detection. i detect
>>>>>pins, but i don't evaluate whether a pin is not so bad or deadly. my questions
>>>>>are:
>>>>>-> are you detecting pins in your program?
>>>>>-> if yes, do you try to distinguish between different pins?
>>>>>
>>>>>cheers
>>>>>  martin
>>>>
>>>>I don't know if this is a good idea or not, but something I have thought of in
>>>>the past is that a move that pseudo-attacks the king is probably worth
>>>>considering. The move might be a pin, but it can also be a skewer. Even if it is
>>>>not a direct tactic (say, there are two or three pieces in front of the king),
>>>>it might setup a tactic eventually. The nice thing about this is that with an
>>>>0x88-like board where you have unique square relationships, this can be done by
>>>>a single table lookup.
>>>
>>>If you have no idea, why the hell are you replying?
>>
>>hey vincent!
>>
>>i asked a simple question (in fact two), and russell replied to it. so he's
>>never tried his idea - what's the problem? i'm glad that people reply to
>>technical questions, whatever they say. good ideas, bad ideas, as long as they
>>have *some* ideas... it would be really bad if nobody replied, or if everybody
>>replied with posts like your last one :-(
>>of course i'm also glad that you replied to my original question, just wondering
>>why on earth you made that last post?
>>
>>cheers
>>  martin
>
>
>The answer to the _last_ question above is intuitively obvious to the casual
>observer.  Hint"  "slang name for donkey".
>
>:)

hi bob,

don't get this wrong, i greatly respect your contributions to this forum. but
then again, i could ask you the same question as vincent: why on earth did you
make this last post? ;-)

cheers
  martin



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