EVENT
BOARDSIZE 19
SETUP W C16 E17 H17 C12 Q18 P17 R10 
SETUP B C10 K17 K15 Q17 R17 R15 
MARK 1@P17
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Problem 75. Black to play.  

White 1 is a bad move. How does Black punish White ? 

<See Reference Diagram 75 for another White erasing move.>
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B 1 N17
USER
CORRECT ANSWER
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COM
Correct Answer.  

Black should attack with 1. White's stones are heavy, with no
room to expand. White cannot make sabaki as in Problem 66.  <=
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