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KanazawaProblem1

 

Kanazawa Problem 1 / Solution
Sub-page of KanazawaProblem1

Main line: HashimotoUtaro
Variations: Dieter

[Diagram]
Main line

White must play W1 in order to live. Any other move fails.



B2 and B4 only go to show that White makes eyes at the marked points. B2 and B4 should be held in reserve as ko threats.

[Diagram]
Var 1

W1 fails.

After B2, she needs both a and b. Those points are miai for life. She can't take them both, so her group is dead.

W1 at a fails likewise.

[Diagram]
Var 2



B2 and B4 make a bent four in the corner shape, killing White. We assume that White can't escape at a.


This problem is an illustration of the proverb: "In a symmetrical position, play the symmetric point".


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This is a copy of the living page "Kanazawa Problem 1 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.