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Tsumego - Life and Death Problems of Go by Minoru Harada

Hitachi

No.669(Answers)

February 16, 2009

Elementary level

Correct Answer Diagram

Black 1 is crucial.
If White 2, Black gets a Ko with 3.

Wrong Answer

Wrong Answer Diagram

Black 1 allows White to live with 2.

Intermediate level

Correct Answer Diagram

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

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