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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2answers
145 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
votes
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?
2
votes
4answers
9k views

Is there a site to play go online against a computer?

There are many go servers but all of them seem to be for player-player games. I want to play online against a computer. I found some but it is not an actual go. I was not able to find a real go brain ...
2
votes
2answers
156 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
votes
2answers
265 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 ...
2
votes
1answer
181 views

life and death: 2 x 4 in the corner with defects

In a go game (with another 4K) I got a 2 x 4 region in the corner with lots of defects. W1 almost surely will happen. Can White get life or ko? $$Wm1 $$ |------------ $$ | . . . . X . $$ | . . O ...
2
votes
0answers
104 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.
1
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4answers
310 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
210 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
vote
1answer
131 views

Oiling fake Yunzi stones [on hold]

I bought some "yunzi" stones that came in straw bowls, but they aren't translucent at all. They are fully opaque. Considering the price paid (around 35 dollars, I bought it in Brazil), I think that ...
1
vote
2answers
160 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 ...
1
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1answer
63 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
154 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. ...
1
vote
1answer
58 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
vote
1answer
814 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? ...
1
vote
2answers
240 views

3-4 point joseki - wide double-pincer

After a low approach at W2, B3 is a wide pincer. I double-pincered at W4 and then diagonal B5. $$ $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . 4 . . | $$ . . . . . . . 5 ...
1
vote
1answer
79 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 ...
1
vote
1answer
771 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 ...
1
vote
1answer
89 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 ...
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 ...
0
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2answers
112 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 ...
0
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1answer
64 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 ...
0
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2answers
99 views

4-4 high approach joseki question

I have a question about 4-4 high approach joseki. Everything is clear until move 4. I don't know how to respond if black plays C15 instead of the expected C17 (stone number 5). It leads to the ...
0
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1answer
86 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 ...
0
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1answer
273 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?
0
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3answers
96 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 ...
0
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0answers
58 views

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 ...
-1
votes
1answer
190 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 ...