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Subject: Re: Tournament Format for World Computer Chess Championship 2004

Author: Vincent Diepeveen

Date: 07:58:25 03/01/04

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On March 01, 2004 at 06:01:18, Claudio Della Corte wrote:

>On February 29, 2004 at 21:49:41, Omid David Tabibi wrote:
>
>>The tournament format for WCCC that was originally decided was:
>>
>>--------
>>http://www.cs.unimaas.nl/icga/news/events/Israel/event.html
>>
>>The format for the 12th World Computer Chess Championship WCCC2004 will be:
>>5-round Swiss, after which the top 4 + 4 teams get to play a 2-round elimination
>>at each stage, and the bottom teams continue to compete for the 9th spot playing
>>a 6-round Swiss.
>>--------
>>
>>However, since a large number of amateur programmers expressed their disapproval
>>of this system, we have decided to change the format so that it will attract the
>>largest number of programmers. Currently the two options are:
>>
>>A) Like the original format, but with re-entry:
>>
>>Divide the participants into two groups. Conduct 5 rounds Swiss, and top 4 from
>>each group (total of 8) will qualify for next stage, which will be a knockout (2
>>rounds quarter-final, 2 rounds semi-final, 2 rounds final). The other programs
>>will continue with 6 more Swiss rounds. However, the *difference* is: the losers
>>in the knockout will join the other programs (who haven't qualified for knockout
>>phase) in continuing with additional Swiss rounds (with all the points they
>>scored in the first 5 rounds and in the knockout phase).
>>
>>The advantage of this method over the original one is that the amateurs will get
>>more chances of playing against commercial programs after the first 5 rounds.
>
>I think the idea is very good, but maybe has something to be adjusted.
>My proposal:
>16 participants (every sport has its qualifying games to reach the World
>Championship, so if the number of willing players is bigger, some method to
>determine the 16 players has to be decided).
>
>First Phase (3 rounds)
>----------------------
>Participants are splitted in four groups A,B,C,D and play three rounds to
>complete a single round robin for each group. Best 3 of each group advance to

(I suppose you  mean a HALF round robin.
single round robin means 2 games each rounds would total 6 games, of course in
volleyball it doesn't matter but in chess, white is a HUGE advantage)

>next phase.

You are missing the point completely. How many participants will show up at the
world champs computerchess when 25% can expect to go home after 3 rounds?

Note that around 1997 and 1999 there was a stop on the number of participants.
It was limited to 30. With your proposal it will get like 4 commercial entries
or so, falcon getting 5th and movei to end as last.

The only advantage of that is that you can play a full round robin of 2x 5
rounds with 6 participants which of course tournament organisation will do with
<= 12 participants.

>
>Second Phase (3 rounds, 6 so far)
>----------------------
>Survivors from group A and B are merged into group E, and the same happens for
>groups C and D into group F. Each group of 6 players has 2 rounds already played
>from previous round, so 3 rounds are necessary to complete the round robin. For
>example a player coming from group A will face 1st, 2nd and 3rd from group B,
>holding its score against other 2 opponents of Group A. Best 4 of each group
>advance to quarter-final.

>Quarter Final (2 rounds, 8 so far)
>----------------------
>Parings are the following: (winner after 2 games advances. In case of 1-1, the
>best placed in its own group advances)
>Q1: E1-F4
>Q2: F2-E3
>Q3: F1-E4
>Q4: E2-F3
>
>Semifinals (2 rounds, 10 so far)
>----------------------
>Parings are the following: (winner after 2 games advances. In case of 1-1, the
>best placed in its own group advances)
>
>Q1-Q2
>Q3-Q4
>
>Final (Single game with possibility of tie-breaks, 11 rounds total)
>----------------------
>Of course played between the winners of the semifinals.
>
>The format I described is similar to the Volleyball World Championship and in my
>opinion is one of the fairest and most spectacular ones. If more than 16 players
>are to be included in the tournament, the solution is to enlarge A,B,C,D groups,
>requiring one more round every 4 players added.
>Regards,
>Claudio



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