Igosuki

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   Juega negro y mata
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   Juega negro y mata
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Ishi-no-shita  

Ishinoshita

unkx80: W4 at W6 can get you a ko. See Under The Stones Problem 6.

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leaning attack

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contact play, inducing

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example of executed ko-threats

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ishinoshita + ko

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inside-cut + stone tower + squeeze-tesuji

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squeeze

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intermediate result of a typical invasion

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ko-block

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teaching value: no unnecessary ataris!

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teaching value: depending on outside liberties ko or plainn death;
here straight kill

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teaching value: life by damezumari

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result after a standard (handicap) invasion

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failure

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dead

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standard cut protection tesuji
it does not work for W if black+circle is at a,
hence a black+circle at b is a failure for B as it does not threaten this tesuji.

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B1 threatens 2 kos.

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Igosuki last edited by Dieter on May 10, 2022 - 17:35
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