(;
GM[1]
SZ[19]
AW[jd][lc][nc]
AB[dd][ld][pd][pf][hc]
LB[ld:1][lc:2]
C[Problem 8. Black to play.  

When Black makes the high invasion, White attaches underneath with 1. How does Black continue ? ]
;B[kc]
TE[2]
C[Correct Answer.  

The moves from Black 1 ... ]
(;W[kd]
(;B[mc];W[lb];B[md]
C[... to 5 are the simplest variation. ]
;W[mb];B[jc];W[id];B[ic]
C[White's stones have been separated into two groups, so Black can look forward to attacking them. <= ]
)
(;B[jc]
C[Variation.  

Crawling to Black 3 can lead to complicated fighting. ]
;W[ic];B[ib];W[id];B[jb];W[le]
C[After White ataris with 8, ... ]
;B[md];W[oe]
C[... she peeps with 10. ]
;B[pe]
C[If Black connects at 11, ... ]
;W[me]
C[... White plays 12, making very nice sabaki. <= ]
))
(;W[jc])
)