(;
GM[1]
SZ[19]
AW[jd][ld][nc]
AB[dd][hc][lc][pd][pf][qj]
LB[ld:1]
C[Problem 5. Black to play.  

How does Black respond when White attaches on top with 1 ? ]
;B[kd]
TE[2]
C[Correct Answer.  

Black should wedge in with 1. ]
(;W[ke];B[kc];W[md];B[jc]
C[Up to 5, Black has gouged out White's base. Black is satisfied with this result. <= ]
)
(;W[kc]
C[Variation.  

White could also atari underneath with 2. ]
;B[ke];W[jc];B[md];W[lb];B[le];W[mc]
C[White links up, but ... ]
;B[oj]
C[... Black makes a large-scale moyo on the right when he plays 9. <= ]
)
)