EVENT
BOARDSIZE 19
SETUP W C16 E17 C12 H17 R10 Q18 
SETUP B C10 K17 Q17 R15 Q16 
MARK 2@Q16 1@Q18
COM
Problem 69. White to play.  

This time Black pulls back with 2 in answer to 1. What should
White do ? 
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W 1 O17
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

White should lightly jump to 1 and, ...
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  VAR
  W 1 R18
  COM
  Failure.

  White must not play 1 because ...
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  B 2 P18
  COM
  ... Black 2 will kill her.
  <=
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  ENDVAR
  VAR
  W 1 P18
  COM
  Failure.

  White 1 is a heavy move.
  ENDCOM
  B 2 R18
  W 3 M17
  COM
  After 3, ...
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  B 4 O17
  COM
  ... Black 4 ...
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  W 5 O18
  B 6 N17
  W 7 N18
  B 8 L18
  COM
  ... to 8 will leave White with only one eye.
  ENDCOM
  W 9 M18
  B 10 K15
  COM
  With Black 10, White is under attack and she must now find her
  second eye in the center.
  <=
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  ENDVAR
B 2 P18
COM
... if Black plays 2, ...
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W 3 M17
MARK A@P17
COM
... jump again to 3. White can later threaten Black with A.
<=
ENDCOM