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11 votes

Why are Elo ratings for go higher than for chess?

There is no ELO rating in go. And even no official international rating at all. A common question in go forums is "how does my rating in [whatever country or online server] compare with [other country ...
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7 votes

Why are Elo ratings for go higher than for chess?

There are three determining factors for how high the highest Elo rating for a given game will be: Internal aspects of the rating system: First an foremost how the ratings are initialised. If you ...
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7 votes

In go, is it possible to guess the opponent's strength from their play?

Probably the best way to gauge a player's strength (aside from playing against them of course) is to present them with Tsumego of varying difficulties. From Sensei's Library: Tsumego, a Japanese go ...
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5 votes

Why are Elo ratings for go higher than for chess?

The ELO system, as it was originally designed, has a mean of 1500 and a standard deviation of 400 points. The central limit theorem defines how many people can exist by this model depending on their ...
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5 votes
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In go, is it possible to guess the opponent's strength from their play?

In addition to the way proposed by Nathan, I would like to add a few further ideas. Winning percentage One simple way to judge the relative strength of two players is to look at their mutual game ...
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  • 6,862
4 votes

Trying to understand KGS ranking system: why did my rank drop?

I can't really speak to the details here - I don't even play go - but I looked at their description of their rating system, and it seems that you've misunderstood the rating system somewhat. In ...
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4 votes

What is the actual world ranking of Fan Hui

Just to add a few notes in addition to Pieter's answer, and with a hint to your implied question (can AlphaGo beat Lee Sedol?): First off, I'm not sure if you thought being 9p automatically means ...
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3 votes
Accepted

What is the actual world ranking of Fan Hui

I believe your information comes from this unofficial rating system: http://www.goratings.org/ Fan Hui's page on that site: http://www.goratings.org/players/1480.html Fan Hui only only played a ...
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3 votes
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Ranking of Go Software

Obviously, AlphaGo is the top AI now. Besides it, a simple way to find information about Computer Go Ranking would be to search for : Computer go tournament Here is a list of Go AI from wikipedia ...
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3 votes

Why are Elo ratings for go higher than for chess?

If you have two games each of which ranks players using the ELO rating system, then the game with higher rankings is generally viewed as "more complex" than the game with lower rankings. In the sense ...
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2 votes
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Playing against underestimated player damages my rank at KGS

Your first question is largely answered by my answer to your other post. You lost a game to another player, whose rank was maybe the same as yours, maybe not, and that has to decrease your rating a ...
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2 votes
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Best practice for implementing a rating system

It really depends. There is a ton of scientific research on the topic of ranking all kinds of things. It would probably take a long time to get up to speed on that. But if I get you right, you instead ...
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  • 6,862
1 vote

In Hearts, is there a way to calculate an average score that is weighted based on the number of games that are played?

From what I understand, I think that you are looking for some players-rating system. The most known system is ELO. In a nutshell, the ELO compute the probability for player A to win player B (and ...
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1 vote

Ranking of Go Software

Some of the strongest programs, like CrazyStone and Zen, have now reached the top 100 on KGS, their current KGS ranking is available on this page. Sensei's library has a page dedicated to KGS bot ...
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1 vote

Why are Elo ratings for go higher than for chess?

There are some good answers to the main question, and this is only to address the sub-question related to trivial games such as tic-tac-toe (because I think it is an awesome question;) Assuming adult,...
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  • 501
1 vote

What is the actual world ranking of Fan Hui

Is there any official and accessible world ranking ? No; Rankings are done by national Go organizations, with some variance existing between them. What is the exact rank of Fan Hui ? As reported ...
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1 vote

Playing against underestimated player damages my rank at KGS

There is no way to know your opponent's strength based on the information you posted. KGS adds the question mark to alert you about an unreliable rating, because that account has played too few games....
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