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Subject: Re: Chess960: Arena castle vs X-FEN castle

Author: Tord Romstad

Date: 13:16:35 11/07/05

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On November 06, 2005 at 07:13:12, Reinhard Scharnagl wrote:

>On November 06, 2005 at 06:59:27, Tord Romstad wrote:
>
>>On November 06, 2005 at 06:57:10, Tord Romstad wrote:
>>
>>>On November 06, 2005 at 06:16:25, Reinhard Scharnagl wrote:
>>>
>>>>If there would be a need to, you simply could check, whether there are castling
>>>>rights without having involved King and Rook at traditional places or not.
>>>
>>>This works in some positions, but not in all.  An example is the following
>>>position:
>>
>>Sorry, I made a typo.  This forum badly needs a "preview" feature.
>>
>>>[D]4k2r/5ppp/5n2/8/1p6/1P6/1P3PPP/B3K2R w Kk - 0 1
>>
>>Tord
>
>May be I have not explained clearly enough. There is NO guarantee that you will
>get such a position with a correct flag, because you are able to create such a
>position within a traditional chess GUI.

I am not sure I understand what you are trying to say.  Of course I can't
guarantee
that the user will always remember to set the "FRC" flag correctly when setting
up
a position, just like I cannot guarantee that he uses the strongest setting with
my
engine.

If the user forgets to set the FRC flag, that's a user error.  If the GUI does
not provide
an FRC flag when setting up a position, we have a limitation in the GUI's FRC
support.
In neither case does this have anything to do with the protocol used to
communicate
with the engine.

Tord



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