Get Strong At Life And Death / Errata

 

The marked white stone is missing in the problem diagram, but present in the solution diagram. In my opinion, it should be present in both, rather than absent in both.

--Dieter

Black lives  

Black lives by setting up the comb formation. This is possible because Black's move threatens to capture the 4 Black stones on the left.

Black lives  

Black can also start by playing to the left of , in order to guarantee two eyes.

White gains a move  

Now Black can't throw in and atari, due to a shortage of liberties, and has to spend an extra move to capture .

Black gets a ko  

I don't see any better result for Black.

--ilan

White can live unconditionally  

For this problem the author gives the following solution:

 

followed by:

Wrong continuation  

Unfortunately is a mistake.

White is short of liberties  

The correct solution is:

Correct continuation  

now black is short of liberties and cannot connect at a.

Diagram 90: White kills Black  

The author writes: if Black at , then White - Black a - White kills him. This is not true.

Variation: White 5 at 1  

Black lives with .

Correct variation  

White at , and this is probably what the author meant.

 

The marked white stone is missing in the problem diagram. (Present in the solution diagram).

Page 152 problem 187

Wrong: The marked stone seems well positioned to to create a false eye.

Right: The marked stone seems well positioned to create a false eye.