About multiple accounts and ELO boosting

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Willie333b
Posts: 116
Joined: 06 June 2016, 13:57
Location: NTC, TWN, ROC

Re: About multiple accounts and ELO boosting

Post by Willie333b »

So difficult to read the ELO formula, can't anyone explain it again, please?
demiurgsage
Posts: 229
Joined: 07 August 2015, 10:08

Re: About multiple accounts and ELO boosting

Post by demiurgsage »

333-blue wrote:So difficult to read the ELO formula, can't anyone explain it again, please?
I can.

R1' = R1 + K * (S1 - E1)

This is the formula for the new rating after the game, where R1, R1' - old and new rating of a player, K - K factor, S1 - result of the game (1 - victory, 0.5 - draw, 0 - defeat), E1 - expected result of the game calculated on difference of players' ratings.

E1 = 1 / (1 + 10 ^ ( (R2 - R1) / 400 ) )
R2 - old rating of an opponent.
also
R2' = R2 + K * (S2 - E2),
S1 + S2 = 1,
E1 + E2 = 1.

K = 40 for Race for the Galaxy, I didn't check if it is the same for other games .

P.S. You can substitute corresponding numbers in the formula and allow google to calculate the result for you.
Willie333b
Posts: 116
Joined: 06 June 2016, 13:57
Location: NTC, TWN, ROC

Re: About multiple accounts and ELO boosting

Post by Willie333b »

demiurgsage wrote:
333-blue wrote:So difficult to read the ELO formula, can't anyone explain it again, please?
I can.

R1' = R1 + K * (S1 - E1)

This is the formula for the new rating after the game, where R1, R1' - old and new rating of a player, K - K factor, S1 - result of the game (1 - victory, 0.5 - draw, 0 - defeat), E1 - expected result of the game calculated on difference of players' ratings.

E1 = 1 / (1 + 10 ^ ( (R2 - R1) / 400 ) )
R2 - old rating of an opponent.
also
R2' = R2 + K * (S2 - E2),
S1 + S2 = 1,
E1 + E2 = 1.

K = 40 for Race for the Galaxy, I didn't check if it is the same for other games .

P.S. You can substitute corresponding numbers in the formula and allow google to calculate the result for you.
Thanks, and K = 60 for the first 30 games, others are K = 40; at the every game, not overall.
nikeinvicta
Posts: 2
Joined: 25 February 2016, 20:25

Re: About multiple accounts and ELO boosting

Post by nikeinvicta »

shamefuluser wrote:My wife and I both play on here, and often I get the flagged notice about two accounts on the same IP -

Should we always just make sure ELO is turned off when we play to prevent being flagged?
Same question have I :) There are games I'm better than my SO, and vice verse :)
GROUP SAX
Posts: 1
Joined: 04 July 2016, 23:41

Re: About multiple accounts and ELO boosting

Post by GROUP SAX »

"Is there a particular reason you capitalize Elo like ELO? It's not an acronym, it's a guy's name: Arpad Elo."

Many (most?) references use the capitalized form and have done so for decades.

When I began playing chess 50+ years ago we used ELO (caps) and were well aware of the originator's name...as he was a well-known chess master. Chess publications early on used 'Elo' when describing the system and tournaments that used it, but soon after they began using 'ELO'. (reason unknown to me)

wikipedia has it as Elo.
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gdBlaze
Posts: 53
Joined: 06 January 2012, 00:48

Re: About multiple accounts and ELO boosting

Post by gdBlaze »

I'm glad to hear that ELO boosting is seen as cheating and that measures are being taken to stop it.

In Can't Stop, I beat the #3 player a while back and since then he's won 47 strait games. That's not suspicious at all. About forty of those games against the same player, hmmm. Maybe top player could win 47 strait games of Puerto Rico, but is it really statistically possible in a game like Can't Stop? Kinda makes me laugh, actually. It's not that it's a waste of time for the cheater, it's a waste of time for everyone who is playing the game and is not getting the rewards that they deserve.

Also, it seems that some players have figured out that the robot turns elo off only most of the time. So, they just play the robot even more than before and about one out of 5 games they get some more elo.

The player in the #1 position; playing the robot exclusively, cheating?.
The player in the #2 position; playing the robot exclusively, cheating?.
The player in the #3 position; as noted above, cheating?.
The player in the #4 position; playing the robot exclusively, cheating?.

Then by some miracle, the #5 player is an actual hard working long time player that deserves the #1 spot.
Derekrledr
Posts: 2
Joined: 18 April 2015, 03:01

Re: About multiple accounts and ELO boosting

Post by Derekrledr »

shamefuluser wrote:My wife and I both play on here, and often I get the flagged notice about two accounts on the same IP -

Should we always just make sure ELO is turned off when we play to prevent being flagged?
I haven't created an account for my wife yet... but I was wondering about that too... as she would probably only use the site to play against me.
Bairdrus
Posts: 1
Joined: 20 September 2016, 06:41

Re: About multiple accounts and ELO boosting

Post by Bairdrus »

gdBlaze wrote:I'm glad to hear that ELO boosting is seen as cheating and that measures are being taken to stop it.

In Can't Stop, I beat the #3 player a while back and since then he's won 47 strait games. That's not suspicious at all. About forty of those games against the same player, hmmm. Maybe top player could win 47 strait games of Puerto Rico, but is it really statistically possible in a game like Can't Stop? Kinda makes me laugh, actually. It's not that it's a waste of time for the cheater, it's a waste of time for everyone who is playing the game and is not getting the rewards that they deserve.

Also, it seems that some players have figured out that the robot turns elo off only most of the time. So, they just play the robot even more than before and about one out of 5 games they get some more elo.

The player in the #1 position; playing the robot exclusively, cheating?.
The player in the #2 position; playing the robot exclusively, cheating?.
The player in the #3 position; as noted above, cheating?.
The player in the #4 position; playing the robot exclusively, cheating?.

Then by some miracle, the #5 player is an actual hard working long time player that deserves the #1 spot.
I as well am concerned about this exact issue. I've been grinding out Can't Stop against actual players only to be discouraged by seeing multiple accounts in the top 10 with boosted rating due to obvious cases of playing themselves on alt accounts or playing against the bot exclusively.

gdBlaze is absolutely correct and if you go look at the top 4 playes it's very apparent that the accounts do not deserve to hold the spots they do.
demiurgsage
Posts: 229
Joined: 07 August 2015, 10:08

Re: About multiple accounts and ELO boosting

Post by demiurgsage »

Derekrledr wrote:
shamefuluser wrote:My wife and I both play on here, and often I get the flagged notice about two accounts on the same IP -

Should we always just make sure ELO is turned off when we play to prevent being flagged?
I haven't created an account for my wife yet... but I was wondering about that too... as she would probably only use the site to play against me.
You can do anything you want if you turn ELO off.
With ELO on if both of you are outside top 20 you are not likely to attract attention.
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Jta_0358
Posts: 2
Joined: 16 May 2016, 02:50

Re: About multiple accounts and ELO boosting

Post by Jta_0358 »

Victoria_La wrote:Is this actually against the rules to play against yourself or its against the rules if you use rated games? Because I don't see why you deny multiple
accounts if people are not playing rated games. There are some legitimate reasons to play against yourself
a) To learn a new game. Even with real board games I have to play against myself to learn the game
b) To test a game (For developers)
Well if those are your cases to play a game with yourself, then i don't see a reason why you would need to be rated for these. You can still play the game with yourself but you won't get as much ratings if you did so its all gucci.
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