EVENT
BOARDSIZE 19
SETUP W D16 D4 K4 S11 R11 R14 Q14 
SETUP B Q3 Q9 S10 R15 Q16 O16 K16 
MARK 1@S11
COM
Problem 83. Black to play.  

White 1 is a calm move which emphasises the security of her stones.
How should Black continue ? 
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B 1 R10
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

Black should keep up the pressure on White by playing 1.
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  VAR
  B 1 N4
  USER
  CORRECT ANSWER
  ENDUSER
  COM
  Correct Answer.

  Black could also extend to 1.
  ENDCOM
  W 2 R10
  B 3 R9
  W 4 S9
  B 5 S8
  W 6 T10
  COM
  If White secures her group with the sequence to 6, ...
  ENDCOM
  B 7 R7
  COM
  ... Black can connect with 7. He is satisfied with his profit
  in the lower right.
  <=
  ENDCOM
  ENDVAR
W 2 Q11
COM
If White 2, ...
ENDCOM
B 3 O10
COM
... Black continues the attack with 3, a move which also expands
Black's influence in the lower right.
<=
ENDCOM