Forum for Carpenter's Square
Two outside liberties discussion [#1912]
: Two outside liberties discussion
(2009-07-28 18:45) [#6254]
Two outside liberties
This is not quite correct (see below) :-) Use GoTools for this kind of analysis
Black can also turn at 2, in which case White needs to continue at the 3-2 point.
The basic attack only produces a three move approach ko that is harder for White to win.
In fact, after 2, Black dies without ko, like this :
: More material for discussion
(2011-07-31 03:09) [#8652]
In All About Life and Death it says that this approach is correct for zero or one outside liberties.
The same approach will also create a ko when there are two outside liberties. What are the advantages (apart from maximising the chances of a mistake) to the other patterns discussed?