Gokyo Shumyo, Section 1, Problem 66 / Solution

Main line: Hashimoto Utaro
Variations: Dieter

[Diagram]

Main line

[Diagram]

Variation

Now Black has just two points.


Failures

[Diagram]

Failure at 1

Black 1 maximizes eye space but actually it leaves defects...

[Diagram]

Continuation

Black lives but is worse off than in the main line. (but he does as well as in the variation to the solution)

[Diagram]

Variation

If White stubbornly tries to kill Black, she fails.

[Diagram]

Variation

But if Black stubbornly tries to save his stone, he dies!


[Diagram]

Variation

This line doesn't work for White: Black is alive

[Diagram]

Variation

But Black must be careful not to capture with 3.


[Diagram]

Failure at 3

If Black 3, White can kill the group in ko.


[Diagram]

Failure at 3 (ii)

White 4 is double atari.


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