Answers

(No. 249: Jan. 29, 2001)

Elementary level: Answer

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

Elementary level: Answer (Variation)

If White 2, Black lives with 3 to 11.

Elementary level: Wrong Answer

Black 1 is wrong. After White 2,
there is no way that Black can live.

Intermediate level: Answer

Black 1 is the vital point.
White 2 is crucial and the result is a Ko
with the moves to Black 5.
If White 2 at 4, Black connects at 2
and wins the capturing race.

Intermediate level: Wrong Answer

Black 1 is wrong. White plays 2 to 6.
Black loses the capturing race.