Answers

(No. 283: Sep. 24, 2001)

Elementary level: Answer

Black 1 is the vital point. After White 2,
Black 3 is crucial to get a Ko with the moves to 7.
If white 4 at 6, Black 7 gets a Ko.

Elementary level: Reference Diagram

Black 3 also gets a Ko with the moves to 7,
but this Ko is less advantageous for
Black compared to the correct Answer.

Elementary level: Wrong Answer

Black 3 allows White to live in a Seki with 4 and 6.

Intermediate level: Answer

Black 1 is the vital point. After White 2,
Black 3 is crucial to get a Ko with the moves to 7.

Intermediate level: Wrong Answer

Black 3 lets White live with 4.