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Subject: Re: Unfair play by chessbase and tiger at auto232 player

Author: Robert Hyatt

Date: 06:51:48 03/28/01

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On March 27, 2001 at 00:17:06, Ed Schröder wrote:

>On March 26, 2001 at 22:36:45, Robert Hyatt wrote:
>
>>On March 26, 2001 at 18:32:53, Ed Schröder wrote:
>>
>>>On March 26, 2001 at 18:05:01, Bertil Eklund wrote:
>>>
>>>>On March 26, 2001 at 17:50:30, Thorsten Czub wrote:
>>>>
>>>>
>>>>
>>>>>right.
>>>>>and the problem is that this all influences the results.
>>>>>especially when doing long matches.
>>>>>
>>>>>you can imagine what i want to say with this.
>>>>
>>>>Yes, exactly, it must have something to do with the devil and capitalism.
>>>>
>>>>Bertil
>>>
>>>
>>>I think this is not a good answer.
>>>
>>>I think that most programs have the "learning" independent of the "save
>>>game" command. Rebel for instance does not depend its learning based on
>>>the end of a game (save game) but during the game. But in earlier versions
>>>the learning WAS dependent on the "save opponent game" flag.
>>>
>>>So if other programs (Diep)(Crafty?) depend their learning code during
>>>the end of the game (save game) Vincent has a point saying the box "save
>>>opponents" should be marked as default.
>>>
>>>Ed
>>
>>
>>I don't need _any_ external trigger to set off my learning code.  I did this
>>for this very specific case.  That I don't want to depend on the other end to
>>tell me when something important should be done.  I don't want to depend on
>>the operator to adjust the book so my program won't play a bad opening.  Etc...
>>I try to do _everything_ automatically...
>
>
>Yes, me too.
>
>But apparantly there are programs that rely on the end of the game for
>learning which was Vincent's point and he is right so I am going to suggest
>to Lex to have the "save opponent game" option marked as default.
>
>Ed


I think Vincent is talking about something different.  IE I had a bad bug
in Crafty right after Tim Mann implemented the "result" command (this command
lets the engine tell xboard that the game ended, 'result 1-0' said white won
for example and xboard trusts this and displays the result in the match game
statistics.)  I screwed up the WTM part and in 1/2 of the games I would
send the _wrong_ result code.  It didn't hurt too much as it would be wrong
for Crafty as often as it was wrong for the opponent.  But _if_ I tried to
be a bit more tricky, I could claim wins when I was drawing or losing the
game.  And if I can prevent the opponent from saving a record of the game,
it will be _very_ difficult to catch this happening.




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