Massive botting screwing up the ELO board. At least 2000 bot accounts.

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Phoxtrot
Posts: 479
Joined: 03 January 2012, 20:55

Massive botting screwing up the ELO board. At least 2000 bot accounts.

Post by Phoxtrot »

I tried to report it by signaling one of the involved accounts but I couldn't find a proper choice, it told me that the proper action against kingmaking is to put a public red thumb.

But this goes way beyond a single player giving the win to someone.

If you look at the ELO ranking for PokerDice, nearly all the first places are trusted by chinese players with very random looking names with exactly 5 games of PokerDice played and nothing else.

If you look a those games, all involving 9 random pseudo chinese players the games are clearly manipulated.

In most of those games, all the players or all the players but one have nearly the exact same thinking time

In nearly all of the games, the final hand of all the players but one are way way worse than statistically reasonnable.

I have done a analysis of the game and with the normal rules, the chances of ending with a single pair or worse after 2 rerolls should be in the range 5% to 8.5% depending on strategy played (this includes expert strategies as well as noob strategies), anything strategy that is not utterly stupid like rerolling nothing with JJQT9...

If you look for instance at the first hand of this game:
https://boardgamearena.com/gamereview?table=760930939

7 players out of 9 ends up with a pair.
If I give a generous 10% of each player ending up with a pair or worse after 2 rerolls
Then the chance of 7 or more players out of 9 getting that is 0.000002998 , 1 chance is 334000.
If I consider a more reasonnable chance of 9%, it's 1 chance in 684000.

Looking at the stats :
And all 9 players have a reflexion time between 33 and 35 seconds.
And 0 dice rerolled (which I guess explains the poor hands unless it's 0 because that stat had not been created yet)

If I look at game 760931668 :
Also 9 players, 8 of whom with the exact same reflexion time of 9 seconds.
Not a single dice rerolled.

Game 760933608:
Also 9 players, 8 of whom with the exact same reflexion time of 11 seconds.
Not a single dice rerolled according to the stats
And 2 hands where 6 players have "one pair" (one chance in 28000 each time of 6 or more players having that if everyone has 2 rerolls)

Since not even the winner seems to be rerolling

In the first 200 ELO rankings, 192 are chinese with random pseudos.
And it goes on and on after that

And I looked at like 20 of them and they all have exactly 5 games player of DicePoker and not a single other game played.
They all created their account recently
They are all aged between 40 and 42.
I couldn't count them but there appears to be more than 2000 bots.

I don't know what the intent is.
Maybe there is one "real" account among them all benefitting from this.
Maybe it is a third party website using BGA as a mean of randomly selecting winners for some betting game ?
Maybe it is a misguided attempt to promote the game by artificially increasing the amount of games played ?
Or an attempt to troll the statistics or the leaderboard ?
Or maybe the dev actually did this to test the code and forgot to remove the fake games ? (seems unlikely)
Last edited by Phoxtrot on 29 November 2025, 14:34, edited 2 times in total.
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cigma
Posts: 1443
Joined: 15 December 2020, 00:30

Re: Massive botting screwing up the ELO board. Hundreds of bots.

Post by cigma »

Phoxtrot wrote: 28 November 2025, 11:29 Maybe there is one "real" account among them all benefitting from this.
If you find good proof for this, you are able to report them. Go to that players profile and chose "... is using multiple accounts to boost ELO" and "The accounts play against each other to cheat the ranking system".
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Phoxtrot
Posts: 479
Joined: 03 January 2012, 20:55

Re: Massive botting screwing up the ELO board. At least 2000 of them

Post by Phoxtrot »

Well, I don't know if they are using the same IP or not : he might very well be using a different IP proxy for each user.
(If you know enough to bot a website, you probably know enough to do that, it's way less complex than it sounds )

But it is more than 2000 users which all :
- have played exactly 5 games on BGA : 5 games of Dicepoker à 9 player against 8 other users with the same profile
- are all chinsese
- are all aged between 40 and 42 (I didn't check all of them, of course, just a simple of 20 or so)
- all play without doing any reroll
- in most of the games, they all or all but one have the same reflection time.

Open the dicepoker page,
https://boardgamearena.com/gamepanel?game=pokerdice
In the upper right corner of the ranking sub-window, click on "current season" and change it to "all-time" and now scroll the ranking, and scroll, and scroll, and scroll...
And occasionnally, click on one of the chinese random looking pseudos (not difficult, it's more than 90% of the users in the ranking for many pages) and look them up and their games : they are all extremely similar.

This level of "coincidence" is impossible and deliberate.

As far as I know, those bots didn't help anyone win against humans, they seem to only play against each other so the problem is not losing to bots or kingmaking.

The problem is the pollution of the ELO leaderboard with literal thousands of bots.

That and the fact that the guy doing this is probably testing how the website will react to this. If there is no reaction, he might very well then use botting to help his real account (on this game or another) or fan an entirely different purpose like collecting private information or preparing a DOS attack on the website. Heck, they might already have done that with all those weird apparently unplanned down times we have had.

Letting more than 2000 bots play with the site without reaction is asking for trouble.
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TacCOIG
Posts: 9
Joined: 08 April 2020, 21:05

Re: Massive botting screwing up the ELO board. At least 2000 bot accounts.

Post by TacCOIG »

Nearly 2 months later and they're all still there messing up the elo board. :roll:
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