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Subject: Re: Request advice from Chess programmers

Author: Dann Corbit

Date: 17:56:07 05/02/03

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On May 02, 2003 at 19:03:25, Dieter Buerssner wrote:
[snip]
>>3.  Null move. (make/unmake is the tricky part)
>
>Why is make/unmake the tricky part? To me, makeing a null move looks much
>easier, than making a normal move. All you have to do in a typical
>implementation, is delete the ep-target (perhaps reset 50 move counter), and
>increment some index (or pointer) to some move stack and update side to move
>(which may be implicit by the increment).

Probably just seemed like it, because I screwed it up the first time I tried it.
 I also had to fiddle with it for double null move and some other odds and ends.



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