Through the Years: Long Correspondence

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  • 272 games left, 313 players involved
  • 7 games completed
  • 2 players disqualified, 1 resigned
  • 9 players completed all their games
  • 3 groups completed all their games

There are no more players without completed games!
The dot on 0-0 coordinates in the Games Performance chart has vanished.
Now @trohde can rightfully claim to be the slowest player in the tournament… well, one of the two slowest players. :slight_smile:

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LOL, long long ago, one of my teachers used to tell me that I could always serve as a bad example :roll_eyes:

And at least I DID finish one game “already” :smiley:

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  • 263 games left, 301 players involved
  • 9 games completed
  • 1 player disqualified
  • 12 players completed all their games
  • 3 groups completed all their games

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  • 257 games left, 298 players involved
  • 6 games completed
  • 2 players disqualified, 1 resigned
  • 3 players completed all their games

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@Lys Have you created a best fit that predicts when the first round will be completed? I feel like at this point you should be able to make a pretty accurate prediction given the data.

8 days later…

  • 250 games left, 289 players involved
  • 7 games completed
  • 1 player disqualified, 1 resigned
  • 9 players completed all their games, one of them with 9 wins
  • 2 groups completed all their games

Progresses are getting slower and slower.
I don’t have a reliable formula to predict tournament behaviour.
I tried simple trend curves (poly and log) but they don’t fit.

Best fit so far is the capacitor charging curve, which isn’t very reassuring: coeff a is the full capacitor charge. According to my curve, we’ll reach 9850 completed games next may and that’s it. If the comparison is correct, we won’t see the end of first round…

We tried also radioactive decay formula, which resembles our data but doesn’t fit very well. Looks like we are slower, we are decreasing less than expected using that curve… and that’s a curve that doesn’t actually reach zero! Does it?

Estimations for worst case (using all the time and vacations and weekends and so on) were talking about 16 years or so… the real answer should be in between those boudaries: next may and 16 years in the future.
That isn’t a very sharp prediction, is it? :smiley:

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To make a prediction, you need to compare with data from another tournament.

Making predictions about the most extreme outlier is a fundamentally difficult problem, since the most extreme outlier is inherently something that does not fit well with the general trend of the rest of the data. In this context, I think the longest game of the first round may likely be due to some extraordinary factors that are almost unique to that particular game. So, the best we can do is make wild guesses when extrapolating the data.

Another approach is to estimate the statistics (like mean and standard deviation) of the length of games finished so far. That would be a biased estimate, since we don’t yet have the data for the roughly 2.5% slowest games. One could try to correct for this by also discarding the 2.5% fastest games.

Given these statistics, one could make a simplifying assumption that the each game duration is a random variable with either a Gaussian or exponential distribution (with each game being independently and identically distributed). Then, estimating the length of the longest game involves looking at the statistics (like mean and confidence intervals) of the maximum of thousands of independent and identical Gaussian or exponential random variables.

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Yeah, let’s start a second edition of Through the years
:innocent:

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For the ones like me who came in too late, please a second chance! Or for the ones who have the feeling they played too quickly…

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Another way to make a prediction: the slowest games are advancing at a pace of 1 move/week. My prediction is that the first round will be finished by the end of 2025.

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This seems more correct - predictions based on averages don’t matter when the end is based on the outlier(s).

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  • 243 games left, 280 players involved
  • 7 games completed
  • 1 player disqualified, 1 resigned
  • 9 players completed all their games
  • 2 groups completed all their games

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Six days later…

  • 236 games left, 275 players involved
  • 7 games completed
  • 1 player disqualified, 1 resigned
  • 5 players completed all their games

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  • 230 games left, 268 players involved
  • 6 games completed
  • 1 player resigned
  • 7 players completed all their games, two of them with 9 wins
  • 2 groups completed all their games

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  • 227 games left, 265 players involved
  • 3 games completed (OUCH!)
  • 1 player disqualified
  • 3 players completed all their games

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I think i missed the start of something great… i wish i could have participated.

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It started long time ago… and will finish long time later.

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Still, it’s interesting now i found it.To follow it’s progress.

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Sure. I missed registration by a few weeks too. Not for us.

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We’re lightyears away already … when we return and the tournament ends, cats (dogs, cockroaches …) will have evolved to talk, walk upright, and have opposed thumbs …

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