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Referenced by BeginnerExercise172
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Beginner Exercise 172 Solution
Difficulty: Beginner
Keywords: Life & Death, Problem
![[Diagram]](../../diagrams/31/3e976929ac3d00a08e1d910963f1ed8b.png) | White dies from a lack of creativity. |
A tesuji is required, eh? Well, the simplistic move at obviously doesn't work, maybe I'll sacrifice something...
![[Diagram]](../../diagrams/1/13725af8ddd25630be142447e0b0d177.png) | White lives, but can black put up a better fight? |
This is not black's best resistance - the kill still works.
![[Diagram]](../../diagrams/39/ca20f43bde29676088398843231516ba.png) | Black has a foil! |
Yep, black can do this. at a doesn't prevent either. White cannot engage in self-indulgent reading! Playing immediately at doesn't work either - black has enough liberties to push at and falsify the other eye.
![[Diagram]](../../diagrams/18/3393d446f372d2e9a8344bf7f4668111.png) | Easier to refute... Or is it? |
Capturing the marked stone doesn't get an eye. But wait, why not at ?
![[Diagram]](../../diagrams/8/8ffd81b542b6dd9dcc4f399500ddb7af.png) | Black can't kill the other eye. |
Black can't play at a because of a shortage of liberties created by . An approach move at b or c is required first, which gives white enough time to play a. at a obviously doesn't work (white captures saving the eye), nor does b, which makes a sente for white. at c has the same result as this diagram. Playing at d is easily refuted by at making for two real eyes on the bottom. There are a couple large ko threats left here for black; at d would prevent one at the cost of one point.
This is a copy of the living page
"Beginner Exercise 172 Solution" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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