EVENT
BOARDSIZE 19
SETUP W E16 D13 D4 P3 S19 S18 R17 Q17 P17 O17 Q16 N18 O19 P15 O14 Q14 Q13 
SETUP B C16 H16 Q5 R4 M18 N17 N16 O16 P16 Q15 R15 R16 R14 S17 T18 T16 S12 
MARK \t@S19
COM
Problem 59. Black to play.  

White has just secured the corner with the marked stone. What
should Black do now ? 
ENDCOM
B 1 Q11
MARK \t@O14 \t@P15 \t@Q14 \t@Q13
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

Attacking the marked stones with Black 1 is severe. With this
move, Black maps out territory on the right side.
ENDCOM
  VAR
  B 1 M14
  COM
  Failure.

  Black 1 is the wrong direction.
  ENDCOM
  W 2 Q11
  COM
  White forces Black ...
  ENDCOM
  B 3 R10
  W 4 Q10
  B 5 R9
  W 6 Q9
  B 7 R8
  COM
  ... to crawl along the third line up to 7.
  ENDCOM
  W 8 M11
  COM
  She then jumps to 8 in good style. Black's position at the top
  is still defective.
  <=
  ENDCOM
  ENDVAR
W 2 M14
COM
White must escape with 2, but ...
ENDCOM
B 3 L16
COM
... this induces Black to fix up his shape on the top with 3.
White's stones are still without a base.
<=
ENDCOM