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21

Historically, pro ranks were an indicator of playing strength. It was said that 3 (later: 4) ranks are about a stone difference. To my knowledge, there never was a time when 1 rank difference actually meant 1 stone. In the 20th century, there was a sudden and increasing change in the strength of new pros. This is generally considered to be a consequence of ...


10

Let's start with the basics. Beginners start out as "30 kyu". As they get stronger, the number decreases to 29 kyu, 28 kyu ... down to 1 kyu. Kyu means "student" and is commonly abbreviated 'k'. The range from 10k to 30k is called DDK (double digit kyu) while 1k - 9k are SDK (single digit kyu). The difference between each rank is supposed to be 1 stone of ...


4

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 particular, statements like "losing even game to 11k is perfectly fine for 13k, it only means you are 12k or weaker" aren't completely true. First off, keep in mind ...


4

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 being stronger than 2p. This is not the case. However, in this particular instance, other matters are of more importance. Fan Hui has not been competing in Asian (...


3

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 term adopted into English, are problems mainly about life and death, but also about ko, capturing races, cutting, connecting, etc. As a rule they are local ...


3

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 few pro games - none recently - so his ranking there (or any other pro ranking system) is unreliable. 1P-9P rankings are not ratings (you only go up) and don't ...


2

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 There's a special website called Computer GO that registers past and future tournaments. There's also a website for KGS Computer Tournaments According to ...


2

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 little bit - in this case it was enough to cause you to drop (maybe you were close to the boundary between ranks, who knows). And it's all based on current rank,...


1

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 here, Fan [Hui] earned a 2-dan professional ranking in China before emigrating to France, so it appears that go software has reached the level of ...


1

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. Another clue is the graph itself. Important variations like this are typical of accounts with few games. Maybe that person only played one game in February ...



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