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Statistics for the previous infinite toroidal go tournament Go forum

10 replies. Last post: 2021-09-03

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Statistics for the previous infinite toroidal go tournament
  • Malcolm Schonfield at 2021-07-25


    For this tournament, I would like to know a few things:

    How many games were played / start date for the first game in the tournament / end date for the the last game in the tournament / average length of a game in moves and in hours or days

    It's mostly just for idle curiosity, but I thought I might put some of these figures on the SL page about toroidal go:


  • William Fraser at 2021-07-31

    Players: 129
    Games: 1882
    Rounds: 138
    Start Date: 2012-11-05 11:27
    End Date: 2020-10-28 01:41
    Average Length in Moves: 60.87
    Average Length in Days: 52.32

    If you consider only games which lasted at least 2 moves:
    Games: 1497
    Average Length in Moves: 76.35
    Average Length in Days: 65.67

    If you consider only games which ended with “resign” or “Accept” (i.e. not loss on time or server weirdness):
    Games: 1440
    Average Length in Moves: 74.52
    Average Length in Days: 60.78

    If you consider only games which met either criterion:
    Games: 1625
    Average Length in Moves: 70.41
    Average Length in Days: 60.51


  • William Fraser at 2021-07-31

    Oh, I just realized that some of those games involved “System”. I can redo with those removed, if you'd like. It'd probably take about 20 minutes.

  • William Fraser at 2021-07-31

    I guess I included about half of the System games (I remembered to exclude them as a player, but not games against them). Here goes:

    Players: 129
    Games: 1843
    Rounds: 138
    Start Date: 2012-11-05 11:27
    End Date: 2020-10-28 01:41
    Average Length in Moves: 62.14
    Average Length in Days: 53.42

    I'll redo the other statistics, or statistics including all System games, if that would be of value.

  • Malcolm Schonfield at 2021-08-01

    Thanks very much for this William. Very interesting.

    How did you get these statistics? Do you have access to the LG database, or did you write a script to download all the games?

    I don't know what it means for a game to involve “system”. Could it be a player who has deleted their account?

  • William Fraser at 2021-08-01

    No, System is a player inserted as necessary to make an even number of players in each round. (Basically, a bye.) It never moves, so it will lose on time unless you go first and either resign or lose on time yourself. I guess the new ladder tournaments won't have that feature.

    I wrote a small java program (took about 5 hours to code/debug) which then took about 30 minutes downloading the games.

  • Sighris at 2021-08-30

    Interesting! Thanks William! (and Malcolm)

  • Malcolm Schonfield at 2021-08-30

    I've belatedly got round to adding William's statistics to SL: https://senseis.xmp.net/?Toroidal Go

    Thanks again, William!

    There are a few other things which could also be interesting, but I don't want to presume on William's generosity with his time…

    1 Data visualisations (maybe histograms) for: the duration of games, and for the results of games in terms of W/B won by how many points
    2 the top 5 longest games (in moves)
    3 the top 5 longest games (in moves) where the result was counted with a difference no greater than the komi.

  • mmKALLL at 2021-09-03

    Fixed link (the page title has no space): https://senseis.xmp.net/?ToroidalGo

    Thank you William and Malcolm for keeping interest in Toroidal Go!

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