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Subject: Re: detecting and evaluating pins

Author: Robert Hyatt

Date: 08:16:21 02/24/04

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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".

:)



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