EVENT
BOARDSIZE 19
SETUP W K17 O17 O15 
SETUP B D16 H17 M17 Q16 Q14 
MARK @@K15 1@O15
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Reference Diagram to Problem 4. Black to play.  

Instead of @ in Problem 4, White jumps out from the other side
with 1.
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B 1 L16
USER
CORERECT ANSWER
ENDUSER
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Correct Answer.

Black plays 2, attacking the white stone on the left.
<=
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