Author: Dieter Buerssner
Date: 14:29:39 06/09/04
Go up one level in this thread
On June 09, 2004 at 13:24:54, José de Jesús García Ruvalcaba wrote: >On June 09, 2004 at 08:31:21, Peter Berger wrote: > >> >>I enjoyed reading your posts but you generalized the problem too much IMHO. I >>specifically referred to legal Swiss pairings only. I agree that there will >>always be some way of pairing left but not one that also follows the much >>stricter rules for Swiss pairings. >> >>If you have sufficient time you can look them up here: >>http://www.fide.com/official/handbook.asp?level=C04 >> >>Peter > >Well, I did not generalise the problem too much. The FIDE swiss system rules are >for sure strict, but they allow score brackets to be melted together if there is >no other way of producing a pairing. Doing that succesvely until we get only one >bracket (with n-3 rounds for n players that could easily happen according to the >rules), we are in the situation I described. > >See >http://www.fide.com/official/handbook.asp?level=C0401B >B.3 is a relative pairing criterium. > >in C.13 of >http://www.fide.com/official/handbook.asp?level=C0401C >it is shown under which circumstances the last two score brackets are joined. The above two are for "Swiss tournament based on rating". The first of 3 Swiss systems shown in the FIDE handbook. I had the impression, that typical Swiss systems are played with the 2nd system shown (for example in Paderborn). But I am not sure. >And in 9.6 of >http://www.fide.com/official/handbook.asp?level=C0402B Which is here >it is described how and in which direction the median score group is extended. I don't follow here. Can you explain it more carefully to me? In the above example, there was no problem to pair round 3 with this system. I do not see any rules, that look ahead to the next round. When you pair the 4th round, there is no possible pairing, whatever you try. There probably most important rule, never pair the same two players again, cannot be fullfilled. Regards, Dieter
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