Answers

(No. 267: June 4, 2001)

Elementary level: Answer

Black 1 is the vital point to capture the White two stones.
If White 2, Black connects at 3.
White has no way to rescue the three White stones.

Elementary level: Wrong Answer

Black 1 is wrong.
White plays 2 to 6. Black is dead.

Intermediate level: Answer

Black 1 is the vital point to capture the two White stones.
If White 2, Black 3 is also the vital point.
This becomes the same shape
as the problem 267 of the elementary level.

Intermediate level: Answer (Variation)

If White 2, Black plays 3 to 7.
White cannot escape in the same way.

:

connects at