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Subject: Re: Stopping games

Author: Shep

Date: 06:25:22 07/13/99

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On July 13, 1999 at 08:20:19, Harald Faber wrote:

>On July 13, 1999 at 07:21:54, Shep wrote:

>You astonish me on and on.
>AFTER the tourney you decide to continue the interrupted game or not, based on
>the ranking and effects a different result woud have???

Yes. It is another "optimization". If no significance for the overall standings
can be expected from a (hypothetically) different result in an adjudicated game,
I see no point wasting another day finishing the game.
Just like I never watch the 3rd place playoff in soccer WCs. :)


>>Maybe it is outdated; I will ponder your arguments for future tournaments.
>>Even more so since my next tournament will be all-amateur, where showing "+3" is
>>not a guarantee for being able to win... :)
>
>Not only for amateurs.
>Best example at this moment is Bobs game he posted Crafty-vs-Loek van Wely.
>Look at it and the -4.xx eval!

Blitz games are different. Here my limit for stopping is +10. Or sometimes
+infinity. ;-)
And van Wely is not a computer, BTW. :)

>I know and that is why I set the time control either 40/120+g/60 or if not
>possible g/180.

I usually prefer playing at these time controls, too, but the SC is an
exception. And this is also yet another remainder of the "old times", since e.g.
Rebel 9 had no "g/180" time control...


>>Yes, but as they always say, that is "not statistically significant". :)
>
>ONE may not be statistical relevant. BTW a 9 round-robin isn't either...

Then again, what is? Not even SSDF... Or just about any tourney in any sports
category in the world, for that matter. ;-)

>But if you adjust say 3 or more games for a program in the tourney the result
>can be VERY different.

True. That's why I keep track of these adjudications ("adjustment" has a
connotation of biased influence, I think) in order to avoid them summing up to
be significant.

>>where Rebel was up +3 against Genius and did not win (but this was a rapid
>>game).
>
>I know such strange games/evals.

They used to be rare, but seem to be becoming more and more common since many
strong programs can now save a game which would have been dead lost 2 years ago.


>Fine, finally we agree. :-)

What a red letter day for our calendar! ;-))

---
Shep



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