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Subject: Re: detecting and evaluating pins

Author: Robert Hyatt

Date: 08:42:13 02/24/04

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On February 24, 2004 at 11:23:11, martin fierz wrote:

>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

Simple.  I was answering your question.

:)




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