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BOARDSIZE 19
SETUP W D17 P17 R5 
SETUP B R16 Q15 Q3 C4 
MARK \t@Q15
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Problem 24. White to play.  

After Black has played the marked stone, what should White do
? 
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W 1 R10
MARK \t@R5
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CORRECT ANSWER
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Correct Answer.

White should extend along the right side with 1 to reinforce her
marked stone and prevent it from being pincered.
<=
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