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Subject: Re: WCCC participants and a board and pieces.

Author: Robert Hyatt

Date: 14:46:54 06/20/02

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On June 20, 2002 at 13:14:15, Dieter Buerssner wrote:

>On June 20, 2002 at 11:33:30, Robert Hyatt wrote:
>
>>On June 20, 2002 at 11:10:52, Louis Fagliano wrote:
>>>Besides, in a power failure don't most programs save the game?  I know Rebel
>>>does because in one game someone accidently kicked the plug of my surge
>>>protector out of the socket and when I powered up and fired up Rebel, there was
>>>the game and score still there.  I don't know if other programs do this because
>>>I don't want to power off my computer by unplugging it.
>>>
>>
>>
>>
>>Maybe or maybe not.  If power fails while you are writing to the disk, that
>>file is going to be corrupted.  Then you are screwed with no backup...
>
>On could get it practically fail safe, by having 2 different files. After any
>move, alternate overwriting one of those with the current
>move-list/PGN/whatever. The 10 msec or so overhead for each move would be
>totally unsignificant for typical time controls in
>"human-operates-on-a-real-board-tournaments".
>
>Of course, one could argue, that a power failure may corrupt your whole HD, but
>then probably typing in the moves manually is the least problem ...
>
>BTW, concerning UPS. The operator of Yace at the Leiden 2002 tournament told me,
>that in the game Isichess-Yace sombody walked over the cables and umplugged
>them. I guess, something like this can hardly be avoided in general.
>
>Regards,
>Dieter

I don't see a foolproof way to avoid the problem.  I have had power
disconnected, breakers thrown due to overload.  Extension cords pulled out
on the remove end.  Etc.





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