Gokyo Shumyo, Section 1, Problem 25 / Solution

Solution

[Diagram]

White lives

W1 makes miai of a and b. It is the vital point.

[Diagram]

Main line

W3 makes miai of a and b.

[Diagram]

Note

The exchange W1 and B2 doesn't affect the solution.


Failures

[Diagram]

Wrong 1

W1 makes an incomplete shape and B2 is just the point to spoil it. After B4, a and b are miai.


[Diagram]

Wrong 2

W1 here is a weaker vital point. B2 is more vital, moreover because B2 threatens to capture two stones and take away all the eye space.


[Diagram]

Wrong 3

Maybe an example of how to die in gote. White 1 definitely is the move to play if you want to ruin your own shape. This is a way of suicide which is not forbidden by the rules.

[Diagram]

Wrong 3 (continuation)

After B2 plays tenuki, White still can't live.


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