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Subject: Re: sample round robin pairings

Author: Andreas Guettinger

Date: 14:29:59 08/15/05

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On August 15, 2005 at 10:00:42, Robert Hyatt wrote:

>On August 15, 2005 at 01:25:28, Richard Pijl wrote:
>
>>On August 15, 2005 at 00:22:53, Robert Hyatt wrote:
>>
>>>Round Robin for 12 players
>>>==========================
>>>Round #01 : 02-11 03-10 04-09 05-08 06-07 01-12
>>>Round #02 : 01-02 11-03 10-04 09-05 08-06 12-07
>>>Round #03 : 03-01 04-11 05-10 06-09 07-08 02-12
>>>Round #04 : 01-04 02-03 11-05 10-06 09-07 12-08
>>>Round #05 : 05-01 04-02 06-11 07-10 08-09 03-12
>>>Round #06 : 01-06 02-05 03-04 11-07 10-08 12-09
>>>Round #07 : 07-01 06-02 05-03 08-11 09-10 04-12
>>>Round #08 : 01-08 02-07 03-06 04-05 11-09 12-10
>>>Round #09 : 09-01 08-02 07-03 06-04 10-11 05-12
>>>Round #10 : 01-10 02-09 03-08 04-07 05-06 12-11
>>>Round #11 : 11-01 10-02 09-03 08-04 07-05 06-12
>>>
>>>that's from an online program pairing RR for 12 players.
>>>
>>>each round has two double colors from the previous round.
>>>
>>>So _if_ they used such a pairing scheme, it could have worked out as it
>>>happened.  Maybe more information will come from some of the participants when
>>>they log on here.  But based on the published rules, it was to be paired as a
>>>Swiss, which makes all this moot and impossible...
>>
>>Swiss really doesn't make sense for 12 participants and 11 rounds.
>>From what it looks like, a random ordering into a round robin is done.
>>Crafty had black twice, so it must have been number 7.
>>Fute_mt had white twice, so it must have been number 1.
>>Using this and the scheme above, the following numbers can be assigned to the
>>programs:
>>
>>1. FUTE_MT
>>2. Jonny
>>3. The Baron
>>4. Zappa
>>5. Isichess
>>6. Shredder
>>7. Crafty
>>8. Diep
>>9. The Crazy Bishop
>>10. Deep Sjeng
>>11. Fruit
>>12. Deep Junior
>>
>>This makes my expected pairings for round 3:
>>
>>The Baron - FUTE_MT
>>Zappa - Fruit
>>Isichess - Deep Sjeng
>>Shredder - The Crazy Bishop
>>Crafty - Diep
>>Jonny - Deep Junior
>>
>>Note that I'm _not_ in Iceland and have no further information about the
>>pairings myself :-)
>>Richard.
>
>
>also note that the above pairing table is just one of many that can be derived.
>I used an online web site that I have used in the past for such events, to
>produce the above table.  But it looks like they are following it to start with
>except that Peter has said that the pairings were altered to save the most
>interesting games for the last few rounds...

Are there online swiss pairing sites available? Can you post a link?
There is not much pairing software available for Unix.

regrads
Andy



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