EVENT
BOARDSIZE 19
SETUP W B16 C14 C12 M15 M16 N15 N14 R15 R14 Q13 Q10 
SETUP B C17 D16 F16 K16 L15 M14 O16 Q16 P14 Q14 R13 
MARK 1@R15
COM
Problem 60. Black to play.  

How does Black answer White 1 ? 
ENDCOM
B 1 R16
USER
CORRECT ANSWER
ENDUSER
COM
Correct Answer.

Black should calmly block with 1 and, ...
ENDCOM
W 2 R12
COM
... when White ataris with 2, ...
ENDCOM
B 3 S13
COM
... descend to 3.
ENDCOM
W 4 S12
COM
After White 4, ...
ENDCOM
B 5 Q12
W 6 P13
B 7 O13
MARK 5@Q12
COM
... Black ataris with 5 and 7, ...
ENDCOM
W 8 P12
B 9 N13
COM
... then plays 9, confining White to the top.
<=
ENDCOM