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Subject: Re: Extensible Chess Interface (XCI) : updated draft

Author: Dann Corbit

Date: 13:09:45 03/14/05

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On March 14, 2005 at 15:56:46, Tim Foden wrote:

>On March 14, 2005 at 12:45:22, Michael Yee wrote:
>
>>(2) New commands from GUI to engine : getstartpos, getmovelist, getresult
>>
>>This enables the protocol to be truly extensible since variants that aren't
>>officially supported by the GUI can still be supported by letting one engine be
>>the "referee" or "arbiter".
>
>Maybe it would be a good idea to:
>
>1) allow an extra third engine as a referee.  This could be useful in the case
>of two engines where you trust neither to be a referee.  A tried and trusted
>third could be used in this job.
>
>2) formalise what is required of a "referee" only.  This would allow a simple
>"referee engine" to be written, to perform arbritration only.

It seems (to me) that the referee needs to do much less than a regular chess
engine -- probably the only real concern is false claims and improper time
control claims.

That stuff could be part of a chess server or the GUI itself perhaps.

A chess engine usually implies analysis.  I do not see any purpose in analyzing
anything but draw claims or time control claims.



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