All you need to know about Carpenter's Square - 33
This is yet another 'incomplete' Carpenter's Square.
We again use the standard Carpenter's Square as a benchmark. Can white can anything better than a direct ko?
can also play this a very flexible shape to form a ko.
then is the correct combination. After *w7*, 'a' and 'b' are miai points so the corner is dead.
doesn't work either. After the corner is dead too due to short of eyespace.
Conclusion: this 'incomplete' Carpenter's Square can be killed. Diagram 33.4 is the only correct way.