(No. 122: Aug. 24, 1998)
Elementary level: Answer
Black 1 is a Tesuji to utilize White's
shortage of liberties. If White 2, Black 3
captures White's three stones in a Snapback.
Elementary level: Variation
If White 2, Black 3 captures the four White stones.
Elementary level: Wrong Answer
Black 1 is wrong. Any White stones cannot be captured.
Intermediate level: Answer
Black 1 is crucial to live. If White plays 2 to 4,
Black 3 and 5 capture the White stones in a Snapback.
Intermediate level: Wrong Answer
Black 1 is wrong. White 2 and 4 kill Black unconditionally.
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