example of executed ko-threats
intermediate result of a typical invasion
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
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.