# RTG Problem 20 / Solution

Sub-page of RTGProblem20

### Solution

Solution 1

The solution is a ko.

Continuation (i)

at , at , at

If White chooses to capture the snapback stones instead...

Continuation (ii)

We see that after , Black lives as White will not be able to play at a.

Solution 2

White also has this response.

If White loses the ko, this is better because Black will not have played at a.

If White wins the ko, White will connect at , creating a false seki, whith the outside Black stones dead. The result is the Solution 1 diagram.

So in terms of points, this is better for White than the Solution 1 diagram above. However, the other way gives White a local ko threat by capturing the two Black stones as in the Continuation (i) diagram. If that threat is crucial, then the other way is better.

Variation

If , then makes and miai.

### Failure

Failure

Why is a failure? See Snapback Problem 16.

Authors

RTG Problem 20 / Solution last edited by Bill on April 16, 2006 - 19:53
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