Answer to Q107

Answers

(No. 107: May 11, 1998)

Elementary level: Answer

The order of Black's moves 1 and 3 is crucial.
After Black 5, the next diagram.

Elementary level: Answer (Continued)

After White 6, Black 7 captures White in a double snapback.

Elementary level: Wrong Answer

Black 1 first and then Black 3 is wrong. After
White 4, Black cannot capture White stones.

Intermediate level: Answer

Black 1 is the vital point to live. If White 2, Black plays
3 to 9 and captures White in an Oshitsubushi.

Intermediate level: Variation

If White 2, Black plays 3 to 7. Black lives by capturing
White in an Oshitsubushi.

Intermediate level: Wrong Answer 1

Black 1 first and then 3 is wrong. White plays 2 to 8.
Black cannot live because it is short of liberties.

Intermediate level: Wrong Answer 2

Black 1 and then 3 also fail. After Black 9, White retakes
it. Black is dead in a "Bent four in the corner" shape.

Retakes at the right of