Igosuki

 

   Juega negro y mata

 

   Juega negro y mata

Ishi-no-shita  

Ishinoshita

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

 

leaning attack

 

contact play, inducing

 

example of executed ko-threats

 

ishinoshita + ko

 

inside-cut + stone tower + squeeze-tesuji

 

squeeze

 

intermediate result of a typical invasion

 

ko-block

 

teaching value: no unnecessary ataris!

 

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

 

teaching value: life by damezumari

 

result after a standard (handicap) invasion

 

failure

 

dead

 

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

 

threatens 2 kos.