Answers

(No. 153: Mar. 29, 1999)

Elementary level: Answer

The combination of Black's moves 1 and 3
captures the two White stones in a Snapback.
All the White stones are dead.

Elementary level: Wrong Answer

Black 1 allows White to live with 2.

Intermediate level: Answer

Black 1 is the vital point. After White 2,
Black gets a Ko with 3 to 7.
If White 2 at 3, Black 2 kills White.

Intermediate level: Wrong Answer 1

Black 1 allows White to live with 2.

Intermediate level: Wrong Answer 2

Black 1 also fails. After White 2,
Black has to play 3, and White lives with 4.