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(No. 144: Jan. 25, 1999)



Elementary level: Answer

Black 1, sacrificing a stone, is the Tesuji to live with the moves to 5.

Elementary level: Answer



Elementary level: Variation

If White 4, Black lives with the moves 5 to 11.

Elementary level: Variation



Elementary level: Wrong Answer 1

Black 1 is wrong. Black plays 2 and 4. Black cannot live.

Elementary level: Wrong Answer 1



Elementary level: Wrong Answer 2

Black 1 fails. After White 8 Black is dead.

Elementary level: Wrong Answer 2




Intermediate level: Answer

Black 1 is crucial. If White 2, Black plays 3
and lives with the moves to 11. If White 4 at 5,
Black lives with 4.

Intermediate level: Answer

B6: connects under W2




Intermediate level: Variation

If White 2, Black lives with 3. If White 2 at 3,
Black lives with 2 in the same way as the previous diagram.

Intermediate level: Variation



Intermediate level: Wrong Answer 1

Black 1 is wrong. White plays 2 and Black dies.
If Black 1 at 2, White plays 1 and Black is dead.

Intermediate level: Wrong Answer 1



Intermediate level: Wrong Answer 2

Black 1 fails. After White 2
there is no way for Black to live.

Intermediate level: Wrong Answer 2



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