Answer to Q123

Answers

(No. 123: Aug. 31, 1998)

Elementary level: Answer

Wedging in with 1 is the Tesuji to get two eyes.
After White 2, Black lives with 3 and 5.

Elementary level: Variation

If White 2, Black gets two eyes with the moves 3 to 9.

Elementary level: Wrong Answer 1

Black 1 is wrong. White plays 2,
and Black has no way to get two eyes.

Elementary level: Wrong Answer 2

Black 1 also fails. After White 2, there is
no way that Black can get two eyes.

Intermediate level: Answer

Black 1 is crucial. After White 2, Black plays 3.
There is no way for White to live.

Intermediate level: Wrong Answer

Black 1 is wrong. White plays 2 to 6.
Black can get no more than a Ko.