(No. 265: May 21, 2001)
Black 1 is crucial. After White 2, Black 3 gets a Ko.

Elementary level: Wrong Answer
Black 1 allows White the vital point 2 and dies.

Black 1 is the vital point.
After White 2, Black 3 is a brilliant move
to win the capturing race.

Intermediate level: Wrong Answer
Black 1 fails to win the capturing race with White 2 to 4.
