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Subject: Re: Pairings round 6 : swiss "perfect" makes very strange pairings

Author: Uri Blass

Date: 11:54:05 08/23/00

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On August 23, 2000 at 12:30:21, Sylvain Renard wrote:

>Round 6:
>
>           Junior (3,5)   - Nimzo (3,5)
>           XiniX  (1)     - Shredder (3,5) !!!
>           Fritz  (3,5)   - Pacque Expert (0) !!!!
>           SOS     (3)    - Rebel (3)
>           Chess Tiger (3)- Crafty (2,5)
>           ZChess (3)     - Insomniac (2)
>           Diep (1,5)     - Francesca (2)
>
>You may think it is not important, but don't forget that the tie-break
>is the sum of opponent's points. So giving Fritz an opponent who will
>score 0 point in this tournament is not necessarily a gift for him!
>
>2,5 points and 3,5 points of difference at round 6 at tables 2 and 3
>is _not_ normal at all!!!
>
>The normal pairings should be :
>Junior (3,5)    - Nimzo (3,5)
>ZChess (3)      - Shredder (3,5)
>Fritz (3,5)     - SOS (3)
>Chess Tiger (3) - Rebel (3)
>Crafty (2,5)    - Insomniac (2)
>Pacque Expert(0)- Francesca (2)
>Diep (1,5)      - Xinix (1)
>
>Much more balanced and interesting, isn'it?

I agree but it seems that the program's first priority is to give every program
the opposite color of the previous round so Fritz and Sos must be white and
cannot play one against the other.

I think the right name for the program should be colorperfect and not
swissperfect.

It still seems to me that it is possible to do a better pairing with this
restriction(fritz can play Crafty) but I did not check if it is possible to
complete Fritz-Crafty to the other games.

Uri



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