(No. 274: July 23, 2001)
Black 1 first, then Black 3 is the vital point
to create a five-point Nakate. White dies.

Elementary level: Wrong Answer
Black 1 first allows White to enlarge its space with 2.
After Black 3 and White 4, the result is a Man-nen Ko.
(Ten-thousand-year Ko)

Black 1 is the vital point. If White 2, Black 3 gets a Ko.

Intermediate level: Answer (Variation)
If White 2, Black gets a Ko with 3 to 7.

Intermediate level: Wrong Answer
Black 1 is wrong.
White creates a five-point Nakate with 2 and 4.
Black dies.
