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(No. 120: Aug. 10, 1998)



Elementary level: Answer

Black 1 is crucial. Black captures
the White stones with the moves to 7.





Elementary level: Wrong Answer 1

Black 1 allows White to escape with 2.





Elementary level: Wrong Answer 2

Black 1 loses the capturing race, White playing 2 to 6.






Intermediate level: Answer

The combination of Black 1 and 3 is a Tesuji.
White 4 is also a Tesuji.
After Black 5, White 6 gets a Ko. If Black 7,
White plays 8 to still continue the Ko.
If Black 5 at 8, White 6 still gets a Ko.





Intermediate level: Reference Diagram

White 4 allows Black to play 5 and kill White.
If White 6 at 7, Black 6 kills White.





Intermediate level: Wrong Answer

Black 1 allows White to live with 2 to 6.






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