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KanazawaProblem58

 

Kanazawa Solution 58
   

[Diagram]
Diag.: Main line

White enlarges his EyeSpace with 1, then makes EyeShape with 3. Incidentally, White 1 - Black 2 makes a notcher with code 411WN.


[Diagram]
Diag.: Continuation - var 1

[Diagram]
Diag.: Continuation - var 2

White 2 at A also works.



[Diagram]
Diag.: Failure at 3

The solid connection at 3 fails. It makes a 312NS notcher. How to attack this shape ?


[Diagram]
Diag.: Failure at 3 (wrong punishment)

Usually, there is death in the hane, but not here.


[Diagram]
Diag.: Failure at 3 (punished)

This is the correct way to punish White: Black 1 strikes at the VitalPoint, and if White 2, the hane kills.


[Diagram]
Diag.: Failure at 3 (punished)

If White enlarges her EyeSpace, Black 3 and 5 prepare it to be AlmostFilled with a killing shape.



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