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(No. 220: July 10, 2000)



Elementary level: Answer

Black 1 is crucial.
If White 2 to 6, Black lives with the
moves to 7 in a Seki.

Elementary level:Answer



Elementary level: Wrong Answer

Black 1 is wrong.
After White 2 to 6, Black is dead.

Elementary level: Wrong Answer



Intermediate level: Answer

Black 1 is the vital point.
If White 2, Black 3 to 5 kills White.

Elementary level: Answer



Intermediate level: Answer (Variation 1)

If White 2, Black kills White with 3 to 5.
If White 4 at 5, Black 4 kills White.

Elementary level: Answer (Variation 1)



Intermediate level: Answer (Variation 2)

If White 2, Black 3 to 5 kills White.

Elementary level: Answer (Variation 2)



Intermediate level: Wrong Answer

Black 1 allows White to get a Seki with 2 to 4.
If Black 3 at 4, White lives with 3.

Intermediate level: Wrong Answer




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