Questions tagged [elo]

Use when the question is ABOUT the Elo rating system not when it mentions Elo

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6 answers
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What would be the elo of a computer program that plays at random?

What would be the Elo of a computer program that plays random moves? For the sake of simplicity, assume that he never asks for a draw or resigns and never accepts a draw offer.
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  • 165
10 votes
5 answers
9k views

How to get to 2000 ELO rating

I'm a 1800 chess player. I know pretty much all the basics in every fields of the game. I know the main lines of openings, I know tactics, I know end game. Average in all of it (=1800 player). I ...
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8 votes
4 answers
1k views

Why do women have a lower Elo requirement to obtaining (women) FIDE titles?

As well as FIDE norms, you need a certain Elo to obtain a certain title. Women need around 200 points lower Elo to obtain the analogous women's only title: Grandmaster (GM) 2500+ International master ...
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1 vote
2 answers
2k views

For long OTB games, what is the percentage of players who have a rating which is below X FIDE Elo?

I am looking for statistics on the FIDE Elo of chess players. I would like to know what is the percentage of players who have a rating which is: Below 1000 Elo Below 800 Elo Below 600 Elo Below 400 ...
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  • 4,469
9 votes
2 answers
8k views

How does a chess engine mimic an Elo rating

I am a fairly new chess player (say 1400) and I would like to play against Stockfish and win some of the time. If I change the strength to 1400 then what does the algorithm actually do ? Does it make ...
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  • 471
5 votes
2 answers
2k views

How to calculate the FIDE Percentage Expectancy Table

Section 8 of the FIDE Rating Regulations provides the following table I understand that dp=800 and dp=-800 are arbitary caps at the top and bottom of the table. However, in relation to the other ...
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9 votes
4 answers
4k views

What would be the Elo rating of a computer which plays all optimal moves?

What would be the Elo rating of a computer which plays all optimal moves? By playing all optimal moves, I mean that it always wins if possible, or else draws if that is the best result possible.
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  • 193
0 votes
1 answer
201 views

What is the mean and standard deviation for men's and then women's standard FIDE ratings for those 2000 and above?

From this answer, the unconditional means and standard deviations are Female Mean = 1505, standard deviation = 339 Male Mean = 1675, standard deviation = 346 What about the case for ratings of 2000+ ? ...
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  • 1
8 votes
4 answers
1k views

Is a team of GMs stronger than a single super-GM?

For example Magnus Carlsen is currently the world number 1 and favourite to win a match against any other player in the world. (Similarly for Wesley So in chess960.) Is he also favoured to win a match ...
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  • 22k
43 votes
11 answers
23k views

How is Alpha Zero "more human"?

I have a possibly naive question about AlphaZero. I have seen it described as playing in a "more human" style than other computers, but whatever it does, it gains about 100 ELO points by doing it. ...
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  • 7,518
10 votes
5 answers
10k views

How to automatically evaluate a player's performance in a game?

Suppose I have a completed game. I don't have Elo ratings of the players. My purpose is to evaluate a player's performance in the game based solely on his moves. Can this can be done automatically ...
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8 votes
2 answers
841 views

Rating calculations for Anand-Carlsen world championship

I have some interesting questions that have to do with the rating changes and calculations for the Anand-Carlsen world championship. First, some preliminary information: Carlsen's live rating: 2870,...
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6 votes
3 answers
9k views

How do you calculate elo?

I am starting a chess club at my school, and I want to create a Python program to calculate and store Elo ratings for each player. I am confident I can program it, but I just need to know: How do you ...
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  • 2,061
19 votes
1 answer
4k views

Are Elo ratings adjusted after each match, or after each tournament?

I'm aware that the FIDE ratings list is only published once per month. I'm interested in how often the ratings are recalculated internally to FIDE without being published. Are ratings adjusted match ...
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8 votes
2 answers
1k views

Why has Carlsen's Elo not changed?

Just looking up Carlsen's Elo and it is still 2870. I know his next goal is to reach 2900. Did the 3 wins in the world chess championship simply not give him any rating points, or does FIDE take a ...
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  • 1,724
6 votes
1 answer
587 views

Can a 2000 Elo rated player teach me middlegame play properly?

I have reached 2500 in the chess.com tactics trainer while I haven't study theory and my FIDE rating is 1637 (I reached 1930 in rapids a year in France). I want to study with a coach and there is one ...
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4 votes
7 answers
3k views

How well does Elo rating estimate a player's strength?

Proposal: strength is the real and rating is the model that estimates it. Question: How well does Elo rating estimate a player's strength? Bonus question: What happens if you take the player's rating ...
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  • 6,620
4 votes
3 answers
3k views

Lichess vs Chess.com ELO system and player strength

So I usually play on Lichess now a days while my friend plays on Chess.com. He keeps telling me that Chess.com is harder and has more players and more serious players, therefore the games are harder ...
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  • 830
4 votes
2 answers
96 views

Creating program for finding top players with respect to elo and age

I want to create a program for personal use but also maybe for publishing it on the web, in order to detect the top players with respect to elo and age. There will be two cases: A) In this case, ...
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  • 373
3 votes
4 answers
10k views

Chess engine with an ELO of less than 1800

I am looking for an UCI compatible engine with an ELO of less than 1800. Not a version of Houdini or Stockfish with an ELO of 1800. I want a engine with a real ELO rating of 1800 or less. If you can ...
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  • 3,335
10 votes
2 answers
4k views

How is it possible for a player without 2500 ELO to obtain the GM title?

I recently came across a GM who has a peak rating 2495 and has obtained the GM title after completing three norms. From my understanding, in order to become a GM one must Achieve a FIDE rating of ...
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  • 804
9 votes
3 answers
3k views

Elo distribution

In some online chess platforms you can see the Elo distribution of the players. It usually has Gaussian form. Is there somewhere where you can find the distribution of the classical Fide Elo?
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8 votes
5 answers
4k views

Is there a software to measure a player's strength based on a game?

I flicked through some papers that described how one can obtain an ELO estimate based on a game. (Basically we were comparing players' moves to the best moves suggested by a strong chess engine. My ...
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5 votes
2 answers
905 views

Deciding on an n-variable for an Elo rating system

I have recently been looking into the mathematics behind the Elo rating system and its application to areas other than chess. I can understand almost all of it but I'm having a problem finding out the ...
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  • 3,198
5 votes
3 answers
1k views

How does Elo rating gain scale with games played?

I only take two players starting out at 1500 Elo and have them play against each other with one player winning all games. Also I leave out any artificially introduced cut-offs. So the winner is ...
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  • 20.4k
2 votes
4 answers
490 views

ELO rating and experience

I was looking at many players' ELO over time graphs and noticed something interesting. Usually players stay in the same 200-300 bracket through very long periods of time (I'm talking decades here) ...
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2 votes
2 answers
145 views

In online correspondence chess, are the ratings adjustments based on the pre- or post-game ratings?

When playing rated online correspondence chess, it's quite possible that the players' ratings change during the game. When the game is over, which rating will be used for rating adjustments? The ...
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  • 539
2 votes
1 answer
122 views

How relevant is historical performance for Elo rating?

How far back are results of matches relevant for Elo purposes? If a player wins a few early matches then they will earn less points for later wins that if they'd lost those early matches. In the end ...
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  • 9,458
1 vote
3 answers
215 views

What sets the absolute value of players' Elo rating?

I understand that the way the Elo updating process works, if player A has a 66% chance of beating player B, then A's Elo rating will converge to be 100 higher than B, and so forth for 74%, ... etc. ...
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  • 314