Gokyo Shumyo, Section 1, Problem 30 / Solution

Solutions

[Diagram]

Traditional Solution

B1 secures life with points.

[Diagram]

Variation

[Diagram]

Alternative Solution

B1 descent also lives, though White can make seki in gote.


Failures

[Diagram]

Failure 1

The W8 hane makes miai of a and b.


[Diagram]

Failure 2

Becomes ko.


[Diagram]

Failure 3

B1 is quietly met by W2 and Black can't make life. (B5 at W6 may lead to ko depending on outside situation)

[Diagram]

Variation

a and b are miai.


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