Author: Peter Berger
Date: 02:36:44 06/09/04
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On June 09, 2004 at 03:54:25, Mark Winands wrote: >2. The tournament will be an 11-round Swiss-system event, using standard >(non-accelerated) Swiss pairings. The provisional playing schedule was given on >page 293 of the December issue. In case there were only 13 participants I wonder if it would really be possible to do legal Swiss pairings for 11 rounds - probably not. Someone sent me an interesting thought experiment some time ago. Assume a Swiss event with six players, A-F - A is the highest seed. 1st round: A-D 1-0 E-B 0-1 C-F 0-1 2nd round: A is paired first, F gets downfloat and has already played C, thus: B-A 1/2 F-E 1/2 D-C 1/2 Standings: A:1.5 (WB) B:1.5 (BW) F:1.5 (BW,d) C:0.5 (WB) D:0.5 (BW) E:0.5 (WB,u) F already had downfloat, so it's B's turn. A gets F, B gets C, so: 3rd round: A-F C-B E-D Whatever the results of the 3 round now, there are no legal pairings for round 4. It is possible that there is some mistake in the above, but I don't think the principal problem can be avoided. Peter
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