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Subject: Re: CH-system with few participants

Author: Rolf Tueschen

Date: 13:00:04 07/11/04

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On July 11, 2004 at 13:52:04, Ingo Althofer wrote:

>On July 11, 2004 at 13:40:05, Volker Richey wrote:
>
>>
>>>Round 10:
>>>1. The Crazy Bishop - Junior
>>>2. FIBChess         - Shredder
>>>3. Fritz            - Diep
>>>4. Crafty           - ParSOS
>>>5. Jonny            - Deep Sjeng
>>>6. Woodpusher 1997  - Falcon
>>>7. IsiChess         - Movei
>>
>>
>>Why?
>>
>>1. The Crazy Bishop - Junior
>>2. FIBChess         - Shredder
>>
>>And not:
>>1. ParSOS - Junior
>>2. Falcon - Shredder ???
>
>That happens when there is a CH system for a tournament
>with only few participants. The program has to take into
>account all participants and only the ones with most points.
>
>Pairings would look more "appropriate" in some "relaxed CH", for instance:
>in the last third of the tournament participants with less then
>33 percent of the points are allowed to play more than once against
>the same opponent.
>
>But in Ramat-Gan they play normal CH.
>It may even be that also in the last round none of your two
>wish-pairings will happen.
>
>Ingo Althofer.


That might all be true now, but then the wrong came into this tournament through
the decision prior to this tournament. The participants who agreed last week
certainly didn't know that this lack of exactly two rounds for a round robin
could badly hurt the whole tournament in the upper ranks as well as the other
parts. The conclusion is that this kind of 11 round proposal by the TD of ICGA
opened the can of worms for all kind of manipulations. Amir's decent admitting
of a wrong in the actual seeding (based on colors for ALL participants) asks for
the question why the mathematically talented didn't speak when the proposal has
been made. Such contradictions are history in the WCCC. In Graz, with a totally
different topic, it was the same. Amir, a really smart guy, let a totally stupid
decision pass without protest but then here in CCC he came and showed us why the
decision _was_ in fact stupid. With such an attitude of kismet democracy cannot
show what it's worth. I don't know the details - perhaps it's useless to argue
to these officials of the ICGA incl. TD board. So then it's still a clever
decision of Amir to stay silent.

Your opinion would interest me, talking about Swiss seedings, if there is an
inevitable fallacy in the mathematical system if say a certain number of players
are treated with a certain number of rounds. Is there so to speak a zone of a n
assured nonsense? And how are the concrete numbers for a safe design?

Thanks.



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