EVENT
BOARDSIZE 19
SETUP W D17 D15 C10 H17 H15 R17 R16 
SETUP B K17 K15 Q17 Q16 Q15 Q10 
MARK 1@Q15
COM
Problem 80. White to play.  

After Black extends to 1, what should White do ? 
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W 1 R15
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

There are two Correct Answers. Crawling with White 1 here is
the first one.
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ENDCOM
  VAR
  W 1 S14
  USER
  CORRECT ANSWER
  ENDUSER
  COM
  Correct Answer.

  The knight's move of White 1 is the other answer.
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  ENDCOM
  ENDVAR
  VAR
  W 1 R14
  COM
  Failure.

  White 1 here is a mistake.
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  ENDCOM
  ENDVAR