EVENT
BOARDSIZE 19
DATE 2002-06-15
KOMI 5.5
RULES Japanese
SETUP W C16 D17 F17 G18 H18 J17 C6 C3 D3 F3 Q6 O6 Q12 O13 M11 O15 O16 O17 
SETUP B H17 H16 J15 F16 E16 D14 D9 B6 C5 D6 D4 Q4 O4 M4 M17 M15 P17 Q16 Q14 S15 
MARK A@B14
COM
Supplement to Problem 130: A big move.

The stone at A in the Problem Diagram is a big move because it
expands White's corner territory while denying Black significant
territory on the left side. If White omits it, ...
ENDCOM
B 1 C15
COM
... Black can  secure most of the territory on the left side
...
ENDCOM
W 2 B16
B 3 E17
W 4 E18
B 5 D16
COM
... and make good shape with the sequence to 5, ...
ENDCOM
W 6 C18
COM
... ending in sente.
::::
ENDCOM