An ancient strategy game for 2 players who try to outwit each other by placing stones on the board to simulate the capturing of territory.

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Are there any single-screen human-vs-human go clients/programs available?

This is a question about Go software, so it might not be the correct place to ask this, but I expect it to be the best place. ;) I want to give a group of people a quick overview on Go but I don't ...
8
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1answer
131 views

What's the longest possible forced repetition in Go?

Assume no superko rules so the game would end with no result. And both players are willing to play the shortest possible cycle as long as they don't give their opponent a chance to win. There are 4 ...
2
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1answer
355 views

How does AlphaGo calculate?

Anyone knows the algorithm of AlphaGo? I heard that it's related to neural networks. But don't know the details? So it does not find the solution to win in a deterministic way, right? I think so, ...
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4answers
145 views

How/where can I get comments from strong players on my gameplay?

I'd like to get advice from strong go players - let's say amateur 6D+ or pros. What are my options for getting that advice? I am not necessarily looking for full game reviews, rather comments on one ...
3
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1answer
78 views

Is this a correct way to count territory in Go (by Chinese rules)?

I am not sure if I misunderstood the territory counting rules of Go or simply I ran into a software bug. One of the Go programs I use counts territories like this. Would you explain me please why B6, ...
2
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0answers
100 views

How can I “censor” players on the IGS server?

How can censor players on the Internet Go Server (IGS)? It says in the help you can block players from matches by "censoring" them, but there is no "censor" command.
5
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1answer
115 views

Counting a surrounded non-alive carpenter's square

I was playing against Crazy Stone and we ended up with (essentially) this corner situation: $$W $$ ------------- $$ | . . 5 X O . $$ | 4 1 3 X O . $$ | . 2 , X O . $$ | X X X X O . $$ | O O O O O . ...
7
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2answers
453 views

Recording Go games and importing into software

In chess, algebraic notation is the standard for recording games and Portable Game Notation (PGN) is a format for importing games (notation plus metadata) into chess software or even forums. The Go ...
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2answers
938 views

Why is this tsumego solution wrong?

I'm trying to understand why my solution to this tsumego is incorrect. It's "Basic problem #26" from Tsumego Pro and looks like this: $$ ---------------------------- $$ . . . . . . . . X . O X . . | ...
5
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2answers
169 views

Ranking of Go Software

Where could I find information about the level of Go playing software? In particular, I am looking for commercial software. Ideally, I'd like to find a live ranking, as obviously this field is ...
5
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5answers
388 views

Why are Elo ratings for go higher than for chess?

If we compare Elo(-like) ratings in chess and in go, we see that the highest ratings published for go (3621 for Ke Jie as of 2016-03-13 at goratings.org) are higher than those in chess (2851 for ...
6
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2answers
564 views

By how many points did alphago win against Lee Se-dol?

Today, the computer program AlphaGo from Google won against the Go world champion Lee Sedol. I read that it won by resignation. If I understand correctly, it means that Lee realized he could not win ...
5
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3answers
257 views

End game deciding on dead stones

In a game of Go, we were in a strange position. If my opponent moved at one point to put my pieces in atari, his pieces would get taken. If I moved at that same point my pieces would’ve been taken. ...
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1answer
150 views

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

Context : while playing against a complete stranger that hide its rank/level. I feel like it would be possible to guess the opponent's strength by analyzing its responses to tesujis, probes, etc. ...
2
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2answers
243 views

Questions about memorizing go games

1) How do you get better at this? Is it just memorizing pro games or does it just come with time? 2) Does it actually improve your game or is it just sort of nice to have. 3) At what point should I ...
1
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1answer
75 views

Can having a short break help improve at Go? [closed]

I'd like to know if taking a little break can be a good idea in go. I've read several threads saying that people became stronger after a short break. Can it be true ? Is there some subconscious ...
3
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1answer
110 views

Are shell and slate go stones fragile?

I'm looking to buy a set of fine (but not luxurious) go equipment (board, stones, and bowls). I have a cheap set of glass stones with a blue plastic sheet "board". Unfortunately my home's floor is ...
3
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3answers
1k views

What is the actual world ranking of Fan Hui

I've read somewhere that Fan Hui was ranked between 600th and 700th world Baduk player. Knowing he's 2P whereas some players are up to 9P, it seems reasonable to me. Is there any official and ...
7
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4answers
316 views

How do I chose invasion or reduction points?

I have the following board: $$cm1 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . O . . . . . . . . . . | $$ | . . . . . . . O O . X . . ...
2
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3answers
295 views

Does a Go variant on an infinite board exist?

I've just read the paper Better Computer Go Player with Neural Network and Long-term Prediction which seems to make a big step in direction of getting a better algorithm playing Go than any human. ...
3
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1answer
249 views

How to run strong Go (baduk) playing program locally?

There are some strong bot-players on KGS (from 4d to 2K). I saw pachi, ayamc and even gnugo having dan ranks on KGS. I wonder how to run such a strong bots offline. I tried gnugo and aya, both ...
5
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3answers
370 views

Is studying tactics for Go useless?

There are plenty of chess tactics trainers online, to improve your chess skills, but I cannot find a single one for go. Is studying tactics useless for go?
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2answers
405 views

Can black win in this Go situation?

Can black win here with or without this move? Or is in every way dead?
2
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2answers
151 views

Trick Joseki? Shoulder hit after keima to 3-4-stone

In a game I played, the following "Joseki" occurred: I played the low keima against the 3-4-point, and Black responded with a shoulder hit. This move is not in the book by Takao Shinji. In the game ...
2
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2answers
141 views

Does the 3-3 invasion work with 3 stones already placed?

With the three black stones placed, I did the 3-3 invasion. $$Wm1 $$ ---------- $$ ........| $$ ...X....| $$ ...X.1..| $$ ....X...| $$ ........| I tried tried to force a KO and did get 2 moves ...
2
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1answer
73 views

Tsumego elementary problem 633 - seki?

I'am trying to solve problem 633 of the elementary set (black's move): It seems to me that after black takes the outside liberty, it's a seki. Or is there a better solution?
5
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0answers
202 views

Annotated 9x9 Go Games

I've recently started playing Go and I would like to study some annotated 9x9 games, but can't seem to find anything. Does anyone know where I could find such games? If it's free that would be even ...
3
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2answers
309 views

Practicing Go for a beginner

I am looking to learn Go. I learned the rules a few years back, but there is a mindset that the game rewards. I want to try to capture that mindset. I have read many Go books, but they are static. ...
9
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2answers
275 views

Is one allowed to play Go with a notebook?

This may be a silly question—but, is it illegal for one to enter a Go (or Chess, for that matter) tournament with a notebook in hand?
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4answers
305 views

Why is this NOT joseki?

Why is white 4 in this diagram not joseki? How can it be punished by black and how bad is it compared to standard joseki play? $$ ---------- $$ ..........| $$ ..........| $$ ..3.2.....| $$ ...
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2answers
111 views

Tsumego elementary problem 157

I tried to solve this tsumego, black is on the move: it seems to me that white can kill black only if he wins the ko two times. Is that correct? After first ko win he will connect at 1-3 and after ...
5
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1answer
357 views

Why is this the solution?

I'm a very weak go player, playing very occasionally. I however enjoy easy tsumego problems on the train on my phone, as I find it more fun than, say, crosswords or sudoku. However, the app I use ...
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1answer
731 views

Where can I find an opening database of professional games for 9x9 Go?

I'm looking for an opening database (also called game explorer) for 9x9 Go, showing in every position the percentage of times each move is played and also possibly the percentage of times each move ...
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2answers
205 views

Fight - can black stones be killed?

I just tried a fight that ended up this: Can the black stones be killed? It's whites move. First, let's assume that white's chain is safe and look at it as tsumego. I tried several sequences but ...
1
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1answer
57 views

Tsumego intermediate problem 11 - possible without winning ko two times?

This tsumego (intermediate problem 11) gave me hard time: I actually only found a solution where black must win the ko two times, which is nasty. Is there a better solution? It actually looks like ...
1
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2answers
157 views

3-3 invasion into 4-4,6-4

In josekipedia, they state that this exchange is a mistake See http://www.josekipedia.com/#path:pdttpfqcpcqdqepbobrbpaqaqb for the full sequence they argue with. But, I think that their argument ...
0
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1answer
62 views

Joseki question

I have found a possible problem in this joseki, see josekipedia: http://www.josekipedia.com/#path:qdttocrdreqcpdpbrcrbsdobnbncmcndmbpcodsb They comment this white's move as "Makes life". But it ...
1
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1answer
88 views

Tsumego problem 899

I am not able to solve this tsumego problem 899 of the elementary set. Black is to move and perhaps to kill white. But it seems to me that regardless of what black does, white will always make one eye ...
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1answer
179 views

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

I really don't understand what's going on in the GoKGS ranking system and why did my rank dropped in Decemeber. Look at my December game list. I was ranked as "13k?". Then I played an even game ...
1
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2answers
256 views

Playing against underestimated player damages my rank at KGS

At GoKGS.com, I (13 kyu) was playing against player ranked as "13k?", and I lost and dropped to 14 kyu. But then we found out (thanks to another user watching the match) that the user is actually much ...
1
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1answer
62 views

Do my games in the GoKGS get deleted after some time?

At this page (https://www.gokgs.com/help/tilde.html) I read: Your whole list of games (i.e. all those played in the last 180 days) ... This kind of suggests that "my whole list of games" = "all ...
1
vote
1answer
31 views

CGoban 3 doesn't ask for saving a review!

I just finished a game at GoKGS and the opponent offered me a review. When we ended, the opponent has left first, then I closed the window with the review in a good hope CGoban will ask me if I want ...
11
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4answers
564 views

Why do all Go board sizes have an odd number of lines? Why is a 19x19 board so much better than a 20x20 board?

Here are the number of games played on every different board sizes on DGS (Dragon Go Server): | Size | CNT | +------+--------+ | 5 | 2464 | | 6 | 466 | | 7 | 11015 | | 8 | 434 ...
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1answer
83 views

Go software for studying/reviewing sgf games

I got a great review of my game from another player on GoKGS. So I got this *.sgf file with lots of variants (tree branches) with lots of comments... So now I am looking for a good piece of software ...
0
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2answers
42 views

How do I set language in GoKGS?

I am forced to use czech language, but I would like to use English. How can I switch languages in GoKGS? This is what I see when I click File (1st in the menu) and Set preferences (3rd in the ...
9
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3answers
200 views

Small go board history

Does anyone know origin of smaller go boards (9*9,13*13)? When (and where) was first introduced? I looked on Sensei library but didn't find anything about history of go boards.
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1answer
262 views

Dan levels: difference between amateur and professional? [duplicate]

Is there a difference between amateur and professional dan levels in go? If yes, how are they related?
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3answers
94 views

First things to learn about semeai?

I would like to learn more about semeai and be able to quickly learn about how to handle the most common situations (determine quickly whether a group is alive, dead, or undetermined). Now, there is ...
5
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4answers
207 views

4-4 high approach - why is the defensive approach prefered?

In the 4-4 high approach joseki, why would black ever want to play the defensive - left variant? The result of the right variant looks much better! While the left variant leaves monkey jump ...
1
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1answer
756 views

Go - How does one count territory in these two scenarios? (9x9)

I'm learning to play Go and I was trying to develop a game in java, but I'm still not sure how to count territory in some cases. In the scenario below, which side belongs to White, Top or Bottom? ...