(No. 250: Feb. 5, 2001)
Black 1 is the vital point.
If White 2, Black wins the capturing race with 3 and 5.

Elementary level: Wrong Answer
Black 1 allows White the vital point 2
and loses the capturing race.

The combination of Black 1 and 3 is crucial
to capture the White stones.

Intermediate level: Wrong Answer 1
Black 1 is wrong. After White 2,
Black has nothing more to do.

Intermediate level: Wrong Answer 2
Black 1 is wrong.
With White 2, Black loses the race.
