Questions tagged [elo]

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

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36
votes
11answers
21k 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. ...
23
votes
7answers
44k 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 ...
19
votes
9answers
12k 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
18k 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?
14
votes
5answers
5k 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. ...
13
votes
1answer
3k 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
5k 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 ...
11
votes
6answers
2k 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.
11
votes
1answer
3k 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
3answers
4k 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?
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
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
5answers
5k 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 ...
8
votes
5answers
7k 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 ...
7
votes
4answers
3k 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.
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
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
2answers
720 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 ...
7
votes
2answers
731 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,...
7
votes
2answers
5k 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 ...
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
4answers
380 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'...
6
votes
3answers
4k 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
1k 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
4answers
691 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
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 ...
6
votes
1answer
964 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
3answers
2k 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
536 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
3answers
8k 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 ...
5
votes
2answers
784 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 ...
5
votes
3answers
285 views

How much stronger is a team of GMs compared to a single GM? [closed]

For example Carlsen is currently the world number 1 and favourite to win a match against any other player in the world. Is he also favoured to win a match against Caruana + Mamedyarov + Ding Liren ...
5
votes
1answer
371 views

Story of unexpectedly high (400+) Elo rising in few months (reaching 2500 Elo mark)

I'm sorry for being vague, but that's exactly my problem: I can't find an online blog post of a German/Scandinavian master anymore which illustrated a case of a young boy from Eastern Europe who ...
5
votes
2answers
705 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 ...
5
votes
2answers
843 views

What are the differences between the major online chess sites that allow to play?

I'm thinking of dedicating some of my free time to learn and play chess in a systematic and serious way and try to participate in a non-Internet tournament in a few months. I will take this activity ...
5
votes
2answers
457 views

Ranking systems that take into account the size of the victory

I run competitions, not in chess, but my question relates to chess Ranking systems, and will give an example of the issue I face. Game 1: Alice scores 5, Bob 4, Chris 3. I use the glicko-2 and elo ...
4
votes
4answers
8k views

Play chess online and get an offical Elo rank

I played chess 30 years ago an now I am back in the arena. I have some spare time to train and play online. Could you please recommend me a good place to do so. A web interface without the need of any ...
4
votes
7answers
2k views

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

Edit (3 March 2014): 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 ...
4
votes
2answers
960 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 ...
4
votes
4answers
157 views

Why are ratings calculated by tournament instead of by game?

When you go to a chess tournament, why is your rating calculated by your tournament performance instead of how most internet chess servers do it? Why don't they adjust the rating by game? What is the ...
4
votes
2answers
270 views

Why doesn't FIDE recalculate ratings match after match?

In this question I brought up two rating systems and wondered which is used by FIDE. Briefly, they are: Method 1 Ratings are updated (recalculated in other words) after every match. Method 2 Ratings ...
4
votes
2answers
442 views

How much worse would I play if I played blindfolded?

Suppose I played a chess game with 60 minutes on both side. I play blindfolded while my opponent does not. Assuming that my rating is 2000 fide, what rating would my opponent have to be so that the ...
4
votes
2answers
713 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 ...
4
votes
2answers
599 views

Expected score in my first FIDE tournament

Going to play my first international tournament next week. As this is my first I do not have a FIDE ELO (I have national rating however). How will my games be rated and how is my expected score for ...
4
votes
4answers
2k 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 ...
4
votes
1answer
327 views

What's “National Master” in China?

Someone told me he's a national master in the Chinese rating system (not FIDE). His English wasn't very good, so he wasn't able to communicate more. He doesn't have a FIDE rating. He has only played ...
4
votes
1answer
2k views

Can you estimate a player's Elo rating using tests?

So I wonder if there are specific positional/tactical tests for every rating range, so that in the end the general rating of a player can be decided prior to competition.
3
votes
5answers
3k views

How to check Elo?

I am an amateur player and from time to time I like to play chess. Is it good to start playing against a computer and try to find an Elo setting where the amount of wins and losses I score is roughly ...
3
votes
3answers
275 views

How large can a rating difference become before either player realizes it's not worth engaging in a game?

I think the relationship changes as rankings increase. For example, players with ratings lower than 1000 might be able to play all other players in that range and still enjoy themselves, but if a sub-...