EVENT
BOARDSIZE 19
SETUP W D17 C15 C9 Q3 R5 R11 
SETUP B C4 E3 L3 R16 P17 J17 
MARK 2@C9 1@L3
COM
Problem 88. Black to play.  

Black 1 and White 2 are the last big points (oba) of the fuseki.
Where should Black play next ? 
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B 1 R13
USER
CORRECT ANSWER
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COM
Correct Answer.

The two-space extension to Black 1 is the biggest move.
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W 2 G17
COM
White will respond with 2.
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B 3 C7
COM
Next, Black 3 and ...
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  VAR
  B 3 O3
  COM
  However, Black 3 here, ...
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  W 4 C6
  COM
  ... followed by White 4, is also possible. From here on the middle
  game commences.
  <=
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  ENDVAR
W 4 N3
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... White 4 are the natural continuation.
<=
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