EVENT
BOARDSIZE 19
SETUP W G17 H17 F16 E16 D16 C16 B15 P17 Q16 R10 D10 E8 
SETUP B B16 B17 C17 D17 E17 F17 K17 N17 Q4 C4 E3 C8 
COM
Problem 58. White to play.  

How should White attack the two black stones at the top ? 
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W 1 N15
USER
CORRECT ANSWER
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COM
Correct Answer.

White should cap with 1, then, ...
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B 2 K15
COM
... after Black jumps to 2, ...
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W 3 L16
COM
... peep with 3.
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B 4 L17
W 5 K16
COM
White can cut through with 5 ...
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  VAR
  W 5 H15
  COM
  Failure.

  If White jumps to 5, ...
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  B 6 M16
  COM
  ... Black will reinforce with 6.
  <=
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  ENDVAR
B 6 J16
W 7 J17
COM
... and 7.
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B 8 M16
COM
If Black breaks through into the center with 8, ...
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W 9 L15
B 10 M15
W 11 L14
B 12 M14
MARK 10@M15
COM
... 10, and 12, ...
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W 13 L13
COM
... White gets a large moyo when she extends to 13.
<=
ENDCOM