EVENT
BOARDSIZE 19
SETUP W C16 E16 K17 N17 R17 R14 Q14 R10 P10 
SETUP B P17 Q16 R15 S15 C10 
MARK B@Q18 A@P18 1@R17 2@S15
COM
Problem 132. White to play.  

In answer to White 1, Black 2 is also a strong move. If White
next plays A, Black can make life with B. So how should White
play ? 
ENDCOM
W 1 Q17
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

White plays 1, ...
ENDCOM
B 2 P16
COM
... forcing Black to connect at 2.
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  VAR
  B 2 P18
  COM
  Failure.

  Black 2 is an overplay.
  ENDCOM
  W 3 P16
  COM
  White cuts with 3, and gets the advantage in the capturing race
  that follows.
  <=
  ENDCOM
  ENDVAR
W 3 P18
COM
Now White can hane at 3 ...
ENDCOM
B 4 O18
W 5 Q18
B 6 O17
W 7 S18
COM
... and live with the moves to 7.
<=
ENDCOM