Hi y'all,
I'm working through Cho's Encyclopedia of Life and Death as transcribed onto tasuki. This is problem 46 in the second volume; black to play and kill. I can't find the correct variation, if there is one (supposedly there are some incorrect transcriptions). Halp, please?
Cho's Intermediate #46
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Richard Hunter
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Re: Cho's Intermediate #46
Cynosure,
It looks correct and solvable to me.
The first two principles of life and death are:
1. Reduce the eye space from the outside.
2. Play at the vital point.
It is usual to try 1 first, and if that does not work, try 2.
Ha! Someone posted the answer at exactly the same time as my post.
It looks correct and solvable to me.
The first two principles of life and death are:
1. Reduce the eye space from the outside.
2. Play at the vital point.
It is usual to try 1 first, and if that does not work, try 2.
Ha! Someone posted the answer at exactly the same time as my post.
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Cynosure
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Re: Cho's Intermediate #46
... I literally tried every point but that one 
Well, I suppose that's why I'm practicing!
And thank you Richard, I'll keep that in mind as I continue through the series.
Well, I suppose that's why I'm practicing!
And thank you Richard, I'll keep that in mind as I continue through the series.
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Richard Hunter
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Bill Spight
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Re: Cho's Intermediate #46
Cynosure wrote:... I literally tried every point but that one
This failed attempt gives a clue about where to play.
at 3.As does this one.
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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macelee
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Re: Cho's Intermediate #46
Remember the attacking point which you will see again and again. If reducing eye space doesn't work, the next level of attack is always this kind of move.
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Cassandra
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Re: Cho's Intermediate #46
White's potential eye space consists of three points.
At the left, there is a dead three-point eye shape visible, which central point is still unoccupied.
White's maximum potential eye space consists of five points.
But (1): There are two holes in White's encirclement.
But (2): There is a line of false eyes at the right.
However, it needs permanent stones on BOTH ends of such a line to make it work.
But (3): Yet another line of false eyes at the right.
Do not let your opponent turn their potential eye space into a long line of points.
Do not let your opponent divide their potential maximum eye space.
Especially, if you leave a dead eye shape behind, which central point can be occupied by your opponent.
The really most difficult Go problem ever: https://igohatsuyoron120.de/index.htm
Igo Hatsuyōron #120 (really solved by KataGo)
Igo Hatsuyōron #120 (really solved by KataGo)
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Krama
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Re: Cho's Intermediate #46
While we are at this, could someone help me solve this one?
I kinda know what needs to be done but I can't find the tesuji to prevent white from approaching the black corner group right away.
I kinda know what needs to be done but I can't find the tesuji to prevent white from approaching the black corner group right away.
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DrStraw
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Re: Cho's Intermediate #46
Krama wrote:While we are at this, could someone help me solve this one?
I kinda know what needs to be done but I can't find the tesuji to prevent white from approaching the black corner group right away.
Still officially AGA 5d but I play so irregularly these days that I am probably only 3d or 4d over the board (but hopefully still 5d in terms of knowledge, theory and the ability to contribute).
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Cassandra
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Re: Cho's Intermediate #46
Think twice before giving atari !
In tsume-go, this advice usually applies for the first move of the solution sequence.
+ + + + +
And also mind the lines of false eyes.
In tsume-go, this advice usually applies for the first move of the solution sequence.
+ + + + +
And also mind the lines of false eyes.
The really most difficult Go problem ever: https://igohatsuyoron120.de/index.htm
Igo Hatsuyōron #120 (really solved by KataGo)
Igo Hatsuyōron #120 (really solved by KataGo)