EVENT
BOARDSIZE 19
SETUP W D17 C6 D4 
SETUP B F3 L3 R4 Q16 
MARK 1@Q16 2@D17 4@D4 6@C6 5@F3 7@L3 3@R4
COM
Problem 78. White to play.  

The formation of 3, 5, and 7 is known as the mini-Chinese opening.
Where should White play next ? 
ENDCOM
W 1 R10
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

If Black is able to take the big point (oba) on the right side,
a large-scale moyo will come into being. Therefore, it is important
for White to establish a presence there by playing 1.
ENDCOM
  VAR
  W 1 D15
  COM
  Failure.

  If White makes a corner enclosure with 1, ...
  ENDCOM
  B 2 Q10
  COM
  ... Black will map out a large-scale moyo on the right side with
  2. His opening strategy has been a great success.
  <=
  ENDCOM
  ENDVAR
B 2 R12
COM
If Black 2, ...
ENDCOM
W 3 R7
COM
... White settles her stones by extending to 3.
<=
ENDCOM