Xuanxuan Qijing Problem 339 / Solution

Solution

[Diagram]

Solution.

B1 kills.

[Diagram]

White's Resistance

The purpose of W2 is to secure enough eye space.

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Cont. 1

W4 is to prevent the group from being almost filled with bulky five.

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Cont. 2

W6 is to prevent the four white+circle from being captured. W6 at r is the same.

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Cont. 3

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Cont. 4

After B9, the white group does not have enough eye space.



Failure

[Diagram]

Seki 1

Although the white group can be seperated into two pieces, but this is seki.

[Diagram]

Seki 2

Another seki.

[Diagram]

(B1 can also be at r)

[Diagram]

[Diagram]

(B1 can also be at r or s)


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