Dear community,
in following two pictures a game situation is shown.
https://goo.gl/photos/8P1Mp8DHYigsD1nT7
We've removed prisoned stones; was this correct.
https://goo.gl/photos/1ZApqCKS5iVuV627A
Thanks a million for advice and explanation.
prisoners?
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hejackedbonsai
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dfan
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Re: prisoners?
The game is not remotely close to finished. For one thing, the entire area in the middle of the board is surrounded by Black stones on one side and White stones on the other. To be painfully honest, asking whether the prisoners in this position have been identified correctly is sort of like asking "Is the sentence 'Farfle grang bi burbim' grammatically correct?" 
Despite the apparent simplicity of the rules, go is pretty hard to learn from scratch. I recommend that you 1) start by playing on a 9x9 board instead of 19x19, and 2) either find a live human to help you with the rules or play a bunch of games against a computer, just to learn how the rules work.
Despite the apparent simplicity of the rules, go is pretty hard to learn from scratch. I recommend that you 1) start by playing on a 9x9 board instead of 19x19, and 2) either find a live human to help you with the rules or play a bunch of games against a computer, just to learn how the rules work.
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sybob
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Re: prisoners?
Hello hejackedbonsai,
This post, but also your other post, seem to suggest that you need some more clarification. Try to find a more experienced player, in person or online.
Prisoners are taken from the board during a game if and at the moment when a stone or chain of stones do not have any liberty anymore. Not earlier. All liberties of a stone or chain of stones should be occupied by the opponent before he is allowed to take stone(s) off the board.
At the end of the game, dead stones are taken off the board. See also your other post and comments. Stones are dead if they, as a group, do not have at least two eyes. The concepts of liberties and eyes, and the difference between those two concepts, seem to be not yet clear for you. Stones which are dead at the end of a game may also be called prisoners, but they are not prisoners like from lack of liberties, but by lack of eyes. Stones which can be considered during the game as dead, because they have not at least two eyes and also will be unable (with best opponent play) to make two eyes later on in the game, may be called prisoners for convenience sake, but are not removed and stay on the board, until they have no liberties anymore and/or are actually dead at the (absolute) end of the game.
This post, but also your other post, seem to suggest that you need some more clarification. Try to find a more experienced player, in person or online.
Prisoners are taken from the board during a game if and at the moment when a stone or chain of stones do not have any liberty anymore. Not earlier. All liberties of a stone or chain of stones should be occupied by the opponent before he is allowed to take stone(s) off the board.
At the end of the game, dead stones are taken off the board. See also your other post and comments. Stones are dead if they, as a group, do not have at least two eyes. The concepts of liberties and eyes, and the difference between those two concepts, seem to be not yet clear for you. Stones which are dead at the end of a game may also be called prisoners, but they are not prisoners like from lack of liberties, but by lack of eyes. Stones which can be considered during the game as dead, because they have not at least two eyes and also will be unable (with best opponent play) to make two eyes later on in the game, may be called prisoners for convenience sake, but are not removed and stay on the board, until they have no liberties anymore and/or are actually dead at the (absolute) end of the game.
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Bonobo
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Re: prisoners?
I strongly recommend visiting The Interactive Way To Go and finishing the course which, IMHO, should be a required course for all Go beginners. Many of your questions will be answered once you finished it, even some that you haven't yet asked
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali
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EdLee
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No; missing info includes seki, the distinguish between real and false eyes, and ko.sybob wrote:Stones are dead if they, as a group, do not have at least two eyes.
It's very difficult (probably impossible) to try to teach a beginner Go well in a few paragraphs. Many have tried, unsuccessfully.
Mr. Cho's Go: A Complete Introduction to the Game is a book.
Bonobo's suggestion to complete The Interactive Way To Go is a good direction.
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sybob
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Re:
Of course, you are totally correct.EdLee wrote:No; missing info includes seki, the distinguish between real and false eyes, and ko.
Because of OP's questions, I did not want to complicate it too much for him and took a short cut.
Still, I hope my reply, and the other replies, were helpful to OP, for starters.
If not, the other suggestions may be of help.
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Bill Spight
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Re: prisoners?
A stone or group of connected stones is captured when it is smothered, i.e., when each of its adjacent points is occupied by an enemy stone. (With one exception, to be explained below.)hejackedbonsai wrote:Dear community,
in following two pictures a game situation is shown.
https://goo.gl/photos/8P1Mp8DHYigsD1nT7
We've removed prisoned stones; was this correct.
https://goo.gl/photos/1ZApqCKS5iVuV627A
Thanks a million for advice and explanation.
The above board position is illegal, because the
stone is captured. It should be removed from the board, to produce the following legal position.How is it captured?
One way is that Black plays
and captures . Before the end of her play, Black removes the stone from the board, leaving the legal position above.If White plays
, it would be captured. White is not allowed to play this suicide. This is another illegal position. Neither the
stone nor the stones may remain on the board at the same time. What happens depends upon whose turn it is, that is, upon who has just played a stone. If it is White, then White removes the Black stone, leaving the following legal position.If it is Black's turn, she removes the White stones to leave this legal position.
¿Está claro?
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
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Bill Spight
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Re: prisoners?
You may enjoy playing the Capture Game, in which the object is to capture one or more stones. It offers a good introduction to regular go. The rules are the same as regular go, but passes are not allowed. You win the game if you capture a stone or if your opponent has no legal play.
Here are a few example games on the 3x3 board, to give you some idea.
threatens to capture 
but White captures first.
is better in this game. 
threatens to capture . 
connects the White stones, but to no avail.
White has no legal move for
, and loses.
This game takes longer, but Black still wins.
leads to a quicker win.
loses.
is another way to win.
People usually start playing the Capture Game on the 6x6 board, and then move on the the 8x8 and 9x9. You can learn a lot from the Capture Game, both tactically and strategically. (The Capture Game is actually more strategical than regular go.)
After the Capture Game you can move on to Capture Two, in which the winner must capture two or more stones, or leave the opponent with no play. After that you can move on to Capture Four. Then when you move on to regular go it will make a lot more sense, and you can apply the lessons of the Capture Games to it. BTW, you can also allow a player to hand over a stone instead of playing on the board. That stone counts as a captured stone. This refinement makes Capture Two or Capture Four or Capture Seven more like regular go.
Good luck!
The rules are the same as regular go, but passes are not allowed. You win the game if you capture a stone or if your opponent has no legal play.Here are a few example games on the 3x3 board, to give you some idea.
threatens to capture but White captures first. is better in this game. threatens to capture . connects the White stones, but to no avail.White has no legal move for
, and loses.This game takes longer, but Black still wins.
leads to a quicker win. loses. is another way to win. People usually start playing the Capture Game on the 6x6 board, and then move on the the 8x8 and 9x9. You can learn a lot from the Capture Game, both tactically and strategically. (The Capture Game is actually more strategical than regular go.
) After the Capture Game you can move on to Capture Two, in which the winner must capture two or more stones, or leave the opponent with no play. After that you can move on to Capture Four. Then when you move on to regular go it will make a lot more sense, and you can apply the lessons of the Capture Games to it. BTW, you can also allow a player to hand over a stone instead of playing on the board. That stone counts as a captured stone. This refinement makes Capture Two or Capture Four or Capture Seven more like regular go.
Good luck!
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.