Kanazawa Solution 26
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Keywords: Life & Death, Problem
![[Diagram]](../../diagrams/51/a08b9adb205fadd3fe682c70f94a6167.png) | White lives |
![[Diagram]](../../diagrams/15/4bbdd776d6ce2e6cb87bdb236ea91d7e.png) | Main line |
The tesuji here is . After , Black can't create a dead shape with a, because he is in shortage of liberties (this is oshitsubushi). Note what a difference a black stone on the marked point would make.
![[Diagram]](../../diagrams/46/d1af1251bbc76355fcd0b9876ffdf7e1.png) | Variation 1 |
White has to be careful to answer at and not at . The strength of is precisely that it already prevents the connection underneath.
![[Diagram]](../../diagrams/50/2dfeb53ec228c1384702b52e69371396.png) | Variation 2 |
Answering at is the only move. It appears as if White can destroy the eye after this sequence by throwing in again at , but White will simply connect at a.
![[Diagram]](../../diagrams/45/e562df977af4bced99ba2257a726d7a3.png) | Variation 3 |
Just to clarify: If Black tries to leave White with a big eye by connecting at a (almost filling the enclosed space with the dead shape of three in a line), White runs to b and claims a second eye at c.
How should White then respond if Black tries playing at d? That won't work for Black; White runs along the second line and if Black follows, eventually White can block on the first line and the resulting capture will give the second eye (at least). I don't think playing at e directly will work; seems like Black sets up a ko that way. White could probably also escape in this sort of situation. -- KarlKnechtel
![[Diagram]](../../diagrams/23/8a4fbbcc718b987d7f3b5bf556d3e491.png) | Variation 3 |
There are many ways for White to go wrong. Let's assume she takes as the obvious move, but fails to see the tesuji of in the main line.
![[Diagram]](../../diagrams/17/7925c361cc3b230d8be9a22ebeaad3c7.png) | Wrong 1 |
Black's hane produces a ko
![[Diagram]](../../diagrams/4/ce7d4e2e35f52a2368790ebe34fedfcc.png) | Wrong 2 |
Black kills with the same hane.
![[Diagram]](../../diagrams/31/7aa663beac0936fb9ea2fcd3b07fab9c.png) | Wrong 2 (variation by KarlKnechtel - there are some other similar ways too) |
Problem 27
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This is a copy of the living page
"Kanazawa Solution 26" at
Sensei's Library.
2003 the Authors, published under the OpenContent License V1.0.
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