EVENT
BOARDSIZE 19
SETUP W D17 P17 R5 Q8 R11 
SETUP B C4 Q3 R16 Q15 O4 
MARK 1@R16 7@Q15 4@P17 2@D17 3@Q3 5@C4 6@R5 8@R11 9@O4 10@Q8
COM
Problem 36. Black to play.  

This is a game between Shusaku (Black) and his teacher Honinbo
Shuwa. After White 10, where do you think Shusaku played ? 
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B 1 C15
MARK B@F3 A@E3
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

Black made an approach move at 1. It might seem that making a
corner enclosure at A or B would also be good, but Black preferred
to let White make an approach move there.
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W 2 E3
COM
White's approach move.

Against White 2, ...
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  VAR
  W 2 M3
  COM
  Continuation.

  In the Shuwa - Shusaku game, White played 2 and ...
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  B 3 F3
  COM
  ... Black made a corner enclosure with 3.
  <=
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  ENDVAR
B 3 J3
MARK \t@O4
COM
... the pincer of Black 3 makes an ideal extension from his marked
stone on the right.
<=
ENDCOM