Answers

(No. 171: Aug. 2, 1999)

Elementary level: Answer

Black sacrifices a stone with 1, and lives with 3.

Elementary level: Wrong Answer

Black 1 fails to live with White 2.

Intermediate level: Answer

Black wins by sacrificing two stones with 1 and 3.

Intermediate level: Wrong Answer 1

Black 3 fails to win.
White can turn this into a Ko with 2 to 8.

Intermediate level: Wrong Answer 2

Black 1 lets White connect at 2.
Black loses the capturing race.