Questions tagged [elo]

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

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40
votes
11answers
22k 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. ...
34
votes
7answers
78k views

How do FIDE rated players perform on lichess?

I have been playing on lichess for a while and it strikes me how low ratings are compared to other rating systems. This is not to say that players are weaker, I have quite the opposite feeling, but ...
27
votes
8answers
6k views

Would an ensemble of chess engines beat the best one?

In many areas such as prediction and classification, ensemble methods tend to outperform individual methods. This made me wonder if it would make sense to pick a few of the top chess engines and work ...
27
votes
5answers
7k views

Are chess players getting better, given the same rating?

Chess ratings are a relative thing at a particular time, just like boxing. It is not absolute, compared to weightlifting for example, in which the records keep getting broken. How would say a 1700 ...
19
votes
9answers
16k views

Is there any software or web service for club-level Elo ratings?

Is there any software (or web-based service) that allows you to keep track of local, club-level Elo ratings? These ratings would not have any connection with official Elo ratings, it would be just ...
17
votes
1answer
25k views

What does ELO stand for?

What does the acronym ELO stand for in the context of chess, as in the ELO rating system?
16
votes
2answers
2k views

Elo loss for resign vs checkmate

Is there a difference in the amount of ELO a player loses from resigning versus being checkmated? If so - What is the difference in the calculation?
16
votes
3answers
18k views

Does elo rating have a limit?

The highest Elo rating to date is 2882, which belongs to Carlsen, while the last Elo rating of Kasparov is 2851. Could I have an Elo rating of 2950 or maybe 3000? Does the Elo rating have a limit?
15
votes
2answers
6k views

Why is Magnus Carlsen's Elo rating not higher, given that his win rate is so high?

Magnus Carlsen's Elo rating is about 2870, and according to this quora answer, he hasn't lost a game in 100 games at the time of writing. Assuming that his win rate hasn't changed since then, and ...
14
votes
5answers
6k views

Why have engines not increased top rated chess players' Elo?

The arrival of strong chess engines as Stockfish, Houdini or Rybka allow top players to deeply prepare lines in openings or to study better endgames. I would expect a rating increase of top players. ...
14
votes
6answers
3k views

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.
14
votes
6answers
50k views

What are the average Elo and USCF ratings?

I'm not sure if there exists an average, but what could be considered an average rating range in these systems?
14
votes
1answer
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 ...
13
votes
3answers
7k views

Is it theoretically possible for Carlsen to reach Elo 3000?

Magnus Carlsen just reached a rating of 2889.2 today. Considering the way that Elo works, inflation and deflation and relative strength of Carlsen, I was wondering whether it is theoretically possible ...
12
votes
4answers
4k views

Are Elo Ratings Zero-Sum?

Are Elo ratings a zero-sum system in chess? In other words, if I gain +9 points from a game, does my opponent necessarily take a -9 point loss? If so, would it make sense to say that Elo points are a ...
11
votes
1answer
5k views

In the USA, if you achieve a USCF rating of 2200 and gain the National Master title, what happens if your rating then goes below 2200?

Is the "National Master" title awarded for your entire life? Or do you lose the title if your rating goes below 2200? I've heard that to get the title of National Master for your entire life you have ...
10
votes
5answers
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 ...
9
votes
5answers
8k 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 ...
9
votes
4answers
2k views

Does it make sense to use an online ELO-rating-test for a beginner as a monthly test tool in order to see my progress?

I'm almost a beginner in the chess world who at the moment only plays online and watch various chess lectures on youtube. I'm thinking about using http://www.elometer.net/ on a monthly basis in ...
9
votes
2answers
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 ...
9
votes
3answers
2k views

Is FIDE president Kirsan Ilyumzhinov a good chess player? What's his Elo rating?

On this page it says he is not rated: http://ratings.fide.com/card.phtml?event=34123811 I could only find one game featuring Ilyumzhinov, in which he played a 2300 Elo player and lost: http://www....
8
votes
4answers
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.
8
votes
2answers
986 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 ...
8
votes
2answers
825 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,...
8
votes
5answers
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 ...
7
votes
4answers
692 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 ...
7
votes
2answers
2k views

Why does the FIDE rating table go beyond 400?

The FIDE rating regulations say: 8.5 Determining the rating change for a rated player 8.51 For each game played against a rated player, determine the difference in rating between the player and his ...
7
votes
5answers
2k views

How to update Elo rating?

I'm building a chess app which will have a Elo rating system. Would it be more appropriate to update player's rating based on their rating at the beginning of the game, or their rating at the end of ...
7
votes
4answers
847 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 ...
7
votes
2answers
1k views

What is the Elo of a player who is half as good as another player?

You often hear players refer to others as half as good as me, while they have the same Elo. Is there a formula to measure this? It must take in account that being half as good as Carlsen, for example, ...
7
votes
3answers
2k 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?
7
votes
4answers
760 views

Is there a low-end ELO Deflation?

I've heard often about Elo Inflation among the top chess players, meaning that a player rated 2650 Elo nowadays is weaker compared to a player rated 2650 Elo player 10 years ago. I'm curious if there'...
7
votes
3answers
529 views

Historical motivation for the 1200-1800ish rating average

Although there is some variation in rating systems (in chess), most systems put the starting value and the mean of all users somewhere around 1500. Some pools are higher, some are lower, but most have ...
7
votes
2answers
1k views

What are the common mistakes make by chess engines at ELO range 1500 - 1800?

I'm a software developer and occasional chess player at elo rating 1500. Chess engines of different level play different type of games with some mistakes according to that given level. I'm ...
7
votes
1answer
200 views

Why do you see peaks on the elo distribution?

I was observing the elo distribution in Lichess and noticed peaks around rounded numbers elos ratings for medium to high rated players. This is consistent in Bullet, Blitz, Rapid games and not so much ...
6
votes
4answers
2k views

Should I join a chess club?

I started playing chess around 1 year ago, all I have done is watch some videos and play online, so my knowledge is pretty poor. I am coming to a new city and I was thinking about joining a chess club,...
6
votes
2answers
588 views

Why, in online chess, is it that the shorter the time control, the higher the world leading elo is?

I noticed on lichess.org that the shorter the time control, the higher the world-leading elo is. Is there a simple explanation for that? I also noticed that, in the meantime, the shorter the time ...
6
votes
3answers
21k views

Starting elo rating at chess.com

I am confused about the starting elo rating of new members at chess.com. Most of them start at 1200 but some of them have 800, 1000, 1400, 1600 or even 1800. How is it decided what is the initial ...
6
votes
3answers
14k views

Stockfish ELO vs search depth

Could Stockfish beat Magnus Carlsen if its moves were calculated with the UCI command "go depth 16"? If not, how can I find the depth "d" at which Stockfish's strength surpasses top GMs? We assume ...
6
votes
1answer
571 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 ...
6
votes
3answers
8k 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 ...
6
votes
2answers
2k views

Could you estimate Napoleon's (or other historic persons) Elo on the base of his known games?

I wonder if there is a possibility to calculate/estimate the Elo rating Napoleon would have today by analysing his known games? Is it possible at all to calculate an Elo rating only with some ...
6
votes
2answers
851 views

Comparing ELO ratings between different countries

I've noticed (empirically) that American players tend to be weaker than Israeli players with comparable non-international ratings. Is there a tool for converting one country's Elo rating to that of ...
6
votes
4answers
950 views

Weighted adjustment for relative Elo

I was looking at my biggest upsets the other day and realized that the result was unsatisfying. Most of them were 500-600 point upsets when I was still really low rated (i.e. 800 beating a 1300), ...
6
votes
2answers
16k views

Is there a list of approximate ELO ratings for each Stockfish level?

I want to create something that will select an appropriate Stockfish difficulty setting automatically given the player's rating. The straight Stockfish v11 that I've downloaded has 20 difficulty ...
6
votes
1answer
1k views

How high is the level of professional blitz tournaments?

A GM has an elo of at least 2500, and Magnus Carlsen has an elo of almost 2900, so I think you can safely say that most games between grandmasters at a level of 2400-3000 elo. This is obviously very ...
5
votes
2answers
1k views

I played my first (rapid) tournament recently and I wanted to calculate my ELO

According to FIDE regulations I should calculate the average of my opponents and just plug it here: https://ratings.fide.com/calculator_rp.phtml. I scored 5/9 but a couple of players didn't have ...
5
votes
3answers
3k views

Simplest chess engine to reach 2000 ELO?

From what I have read coding a "vanilla chess engine" (c++ code for alpha-beta search over bitboard representation with simple hand-crafted evaluation function), will get you to 1500~1700 ELO on CCRL ...
5
votes
1answer
628 views

Where can I find a rarity table of chess player ratings? [duplicate]

Now it's fine either as percentage of all FIDE players registered or just as number itself (like either 1/100k players are rated above X, or 23 players rated above X, respectively). Let's say by ...
5
votes
2answers
892 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 ...