Xuanxuan Qijing Problem 142 / Solution



Solution

[Diagram]

Solution

B1 kills.

[Diagram]

White's resistance

For any other W2 except a, B3 at W2 kills. (If W2 at a, then Black b kills.)

[Diagram]

Cont.

W4 prevents Black from capturing white+circle.




Failure

[Diagram]

Switching the order doesn't work.

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[Diagram]

[Diagram]

[Diagram]

(B1 can also be at r or s)


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