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Subject: Re: Crafty 19.12se/ChessPartner 5.3 problem ?

Author: Mike Byrne

Date: 13:44:08 04/25/04

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On April 25, 2004 at 15:29:27, James T. Walker wrote:

>On April 25, 2004 at 15:25:24, Dieter Buerssner wrote:
>
>>On April 25, 2004 at 14:57:40, Lex Loep wrote:
>>
>>>the CP GUI expects thinking output from the engine in a certain format. It uses
>>>this to retreive the score from the PV. In some instances the engines either
>>>does not send a PV or it sends a PV in which CP cannot recognise the score. In
>>>these case its scored as 0.
>>
>>You know better than me, that the format of the actual PV is practically
>>undefined in the WB/XB protocol. If CP is dependent on some specific features in
>>the format of the PV, one could consider this as a bug of CP. At least, it would
>>be good, if you documented which PV formats are recognized. But the format for
>>the score is rather well defined in the protocol (excluding mate scores, which
>>of course might be a problem, and should be fixed in the protocol). When an
>>engine sends strange scores (or other things defined in the thinking output in
>>the protocol before the actual PV), the engine should be blamed.
>>
>>Regards,
>>Dieter
>
>I get similar results in Arena.

When you say similiar results - do you mean the exact same condition as in the
CP condition or just other incorrectly reported results.  I know there are some
bugs with arena that do not like the "I claim a draw" annoucements that are now
in Crafty and will misrport drawn games as losses for Crafty.  I set up a
special parameter in Crafty SE to address that issue and the command is "arena
on" which fixes that nuance and  the search time per move issue as well.

It's too hard for me to keep with every GUI and the little differences bewteen
them so I recommend using either Arena (be sure to have "arena on" in the
crafty.rc file) or Winboard.  I have totally given up on Chessbase with their
GUI sending a "new" command every single move.   That is simply too disruptive
to Crafty SE using the wb2uci.exe adapter.

Michael



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