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Subject: Re: CCT8 Update: New entrant

Author: Peter Kappler

Date: 14:35:06 02/15/06

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On February 15, 2006 at 17:13:54, Robert Hyatt wrote:

>On February 15, 2006 at 16:24:20, Uri Blass wrote:
>
>>On February 15, 2006 at 15:18:56, Robert Hyatt wrote:
>>
>>>On February 15, 2006 at 13:19:35, George Tsavdaris wrote:
>>>
>>>>On February 15, 2006 at 12:59:32, Peter Skinner wrote:
>>>>
>>>>>On February 15, 2006 at 12:55:56, Peter Skinner wrote:
>>>>>
>>>>>>Hello all,
>>>>>>
>>>>>>As promised by Vincent last week, he has entered Diep into CCT8.
>>>>
>>>>Nice but what hardware he will use? Any huge one or normal(fast).....?
>>>>
>>>> Also is this the most large number of participants for a CCT or there have been
>>>>and any larger....?
>>>> I remember very recently Hiarcs and an experimental Junior participating. Did
>>>>that happen in the last CCT or in another different than CCT tournament.....?
>>>>
>>>> Also 9 rounds with so many participants seems a bit short for me. Do you
>>>>consider increasing the number of rounds.....?
>>>>
>>>
>>>9 rounds is enough to find a clear 1st place for 512 opponents.  :)
>>
>>This is correct if one program wins all the games but it will probably not
>>happen.
>>
>>>
>>>By the time this event ends, the top group will have all played each other.
>>
>>I am not sure of it.
>>In theory it is possible to have 10 winners with 6 out of 9 and in this case it
>>is clear that they need to beat weaker programs to get more than 4.5 out of 9 so
>>not every pair of winners played.
>>
>>Uri
>
>In practice this doesn't happen.  The real problem is that by round 6, the
>winner is pretty certain, although three games against weaker opponents are
>left, and there the luck factor often lurks behind a pawn and jumps out to
>present a surprise and knock one of the top players off.
>

I have to believe that you're half-kidding here.  Surely you don't believe that
 adding 3 more rounds increases the variance of the final result?

-Peter





>log2(#players) is a good number of rounds for starters.  one more gives a couple
>of more top finishers a better final result.  But too many and many of the final
>rounds are simply meaningless, as we've seen multiple times.  For example, at
>the last WCCC they tried to fudge the round-robin pairing to put a few of the
>"interesting games" on the final few rounds.  Didn't work out at all and the
>event was over early...
>
>There can always be too many rounds in a Swiss.
>
>9 is on the edge.  Both in final results and in total time required to play 9
>games...



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