BeginnerExercise237/Solution

Sub-page of BeginnerExercise237

B1 is the following examples is the key.

[Diagram]

path 1 - optimal

Black gets the 3 white stones in a snapback

[Diagram]

path 1 - why not protect?

If W4 would protect against the snapback, Black would cut white in two killing more white stones.

[Diagram]

path 1 - why go for all?

Because White can just capture the cutting stones then.

[Diagram]

path 2

W4 prevents a snapback

[Diagram]

path 3

W4 prevents a snapback

billyswong: However, in path 2 and 3, white results with loss of more than the original 3 stones with no gain. But the snapback in path 1 can be used as a ko threat later on.



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