EVENT
BOARDSIZE 19
SETUP W C14 H17 H15 O17 O15 R12 
SETUP B D16 F16 F14 L16 Q16 Q14 
MARK A@L17 \t@R12 1@O15
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Problem 50. Black to play.  

This time White has the marked stone in place on the right side.
How should Black answer White 1 now ? 

<See Reference Diagram 50 for a deep black invasion at A.>
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B 1 P13
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CORRECT ANSWER
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Correct Answer.  

Black must move out into the center with 1.  
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W 2 L14
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If White caps with 2, ...  
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B 3 N16
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... Black can easily break out into the center with 3, ...  
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W 4 O16
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... White 4, ...  
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B 5 M14
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... Black 5.  <= 
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