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Subject: Re: Minimum Number of Bytes - encode castling within kings coordinates

Author: Reinhard Scharnagl

Date: 03:01:58 12/24/03

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On December 24, 2003 at 00:54:50, Russell Reagan wrote:

>On December 23, 2003 at 23:58:19, Reinhard Scharnagl wrote:
>
>>you are describing just the big translation table, I have spoken of.
>>
>>I will try to explain the nature of a solution I would like to have
>>(which is still not complete and in devlopment).
>>
>>Suppose the castling rigths are the following bits: bwl, bwr, bbl, bbr.
>>
>>a) if both kings are at original place,
>>   encode Kw = kb = (bwl, bwr, 0, bbl, bbr, 0)
>>b) if only the white king is at original place,
>>   1) O-O only -> place him immediately over or under the black king
>>   2) O-O-O only -> place him immediately right or left to the black king
>>   3) both castlings -> ... still no idea, sorry
>>c) if only the black king is at original place,
>>   1) O-O only -> place him immediately NW or SE the white king
>>   2) O-O-O only -> place him immediately NE or SW to the white king
>>   3) both castlings -> ... still no idea, sorry
>>
>>That this moment is the direction I am thinking of a solution.
>
>Why do you only use the relative locations of the two kings? Instead of using
>north, south, east, west, and combinations of those, why not do it like this:
>
>If white king on a1 and black king on b1, then ...
>If white king on b1 and black king on c1, then ...
>If white king on c1 and black king on d1, then ...
>...
>If white king on e4 and black king on d5, then ...
>and so on...

[...]

That would have the form of a big cryptic translation table. I already have
mentioned, that such a solution would WORK. But I do not like it, because it
would not be a TRANSPARENT approach.

Reinhard.



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