Author: Robert Hyatt
Date: 20:26:28 02/15/06
Go up one level in this thread
On February 15, 2006 at 17:35:06, Peter Kappler wrote: >On February 15, 2006 at 17:13:54, Robert Hyatt wrote: > >>On February 15, 2006 at 16:24:20, Uri Blass wrote: >> >>>On February 15, 2006 at 15:18:56, Robert Hyatt wrote: >>> >>>>On February 15, 2006 at 13:19:35, George Tsavdaris wrote: >>>> >>>>>On February 15, 2006 at 12:59:32, Peter Skinner wrote: >>>>> >>>>>>On February 15, 2006 at 12:55:56, Peter Skinner wrote: >>>>>> >>>>>>>Hello all, >>>>>>> >>>>>>>As promised by Vincent last week, he has entered Diep into CCT8. >>>>> >>>>>Nice but what hardware he will use? Any huge one or normal(fast).....? >>>>> >>>>> Also is this the most large number of participants for a CCT or there have been >>>>>and any larger....? >>>>> I remember very recently Hiarcs and an experimental Junior participating. Did >>>>>that happen in the last CCT or in another different than CCT tournament.....? >>>>> >>>>> Also 9 rounds with so many participants seems a bit short for me. Do you >>>>>consider increasing the number of rounds.....? >>>>> >>>> >>>>9 rounds is enough to find a clear 1st place for 512 opponents. :) >>> >>>This is correct if one program wins all the games but it will probably not >>>happen. >>> >>>> >>>>By the time this event ends, the top group will have all played each other. >>> >>>I am not sure of it. >>>In theory it is possible to have 10 winners with 6 out of 9 and in this case it >>>is clear that they need to beat weaker programs to get more than 4.5 out of 9 so >>>not every pair of winners played. >>> >>>Uri >> >>In practice this doesn't happen. The real problem is that by round 6, the >>winner is pretty certain, although three games against weaker opponents are >>left, and there the luck factor often lurks behind a pawn and jumps out to >>present a surprise and knock one of the top players off. >> > >I have to believe that you're half-kidding here. Surely you don't believe that > adding 3 more rounds increases the variance of the final result? > >-Peter > Yes, it absolutely does. Simple example: 4 strong programs, 12 weak ones. after round 1, you have 8 with 1, 8 with 0, the 8 with 1 include the top 4. After two rounds, the top four have two, the bottom four have 0, and the rest have 1 (assuming no draws). after 3 more rounds the top four have played. What now for those other 4 rounds? Other programs? With the luck factor increasing variance? > > > > >>log2(#players) is a good number of rounds for starters. one more gives a couple >>of more top finishers a better final result. But too many and many of the final >>rounds are simply meaningless, as we've seen multiple times. For example, at >>the last WCCC they tried to fudge the round-robin pairing to put a few of the >>"interesting games" on the final few rounds. Didn't work out at all and the >>event was over early... >> >>There can always be too many rounds in a Swiss. >> >>9 is on the edge. Both in final results and in total time required to play 9 >>games...
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.