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.[1]

[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.

NickGeorge: err... wouldn't them being miai for life mean that either one would be sufficient to live?

Bill: Indeed. I think a WME is in order.

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".


Back to Kanazawa Tesuji Series
Go to Problem 2


[1]

Bill: They may be ko threats, but they are losing ko threats.


This is a copy of the living page "Kanazawa Problem 1 / Solution" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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