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Subject: Re: WMCC pairing??

Author: Robert Hyatt

Date: 15:06:20 05/31/99

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On May 30, 1999 at 17:02:28, Sylvain Renard wrote:

>On May 29, 1999 at 13:43:38, Robert Hyatt wrote:
>
>>Occasionally the TD will 'lose it' and go to the silly 'accelerated pairing'
>>approach where you pair round one by pretending that round 1 has already been
>>played and the top half beat the bottom half 100%. This is normal when you have
>>a large number of entries and fewer than log2(entries) of rounds.  In the WCCC
>>/ WMCCC events it is stupid to do this.  But that doesn't prevent it from being
>>done...
>
>  Dear Mr Hyatt,
>I am very glad to read that. I helped Mr Van den Herik during the 15th World
>Microcomputer Chess Championships in Paris (1997) for the pairings. I used
>exactly the same arguments but there was nothing to do! The accelerated
>pairing was his idea and nothing could make him change his mind.
>His main argument was that there was a gap between the "strong"
>programs and the "weak" programs in this tournament. That's we all
>saw when the "strong" program Fritz lost against the "weak" program
>Stobor... -:)
>
>Best regards,
>   Sylvain Renard (official arbiter of the French Chess Federation)


The worst effect is that by the last round, all the strong programs had
played, the tournament was over, unless a strong program lost to a weaker
program in the last round.

But you/I were correct... the idea was _wrong_.  It was a case of someone
finding something "new" (I suppose) (accelerated pairings) and then applying
it in the wrong circumstance.

The only reason for doing this is if there is a big 'gap' and too few rounds.
At the WMCCC there was not too few rounds, as you knew...  Hopefully it won't
be repeated...



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