(;
GM[1]
SZ[19]
AW[dc][ce][gc][mc][qg][qj][dp]
AB[id][oc][pd][qe][ql][qp][oq]
TR[gc]
C[Problem 62. Black to play.  

White has just played the marked stone. How should Black attack the lone white stone at the top right ? ]
(;B[ld]
TE[2]
C[Correct Answer.  

The shoulder hit of Black 1 is a powerful move. ]
;W[md]
C[If White tries to escape into the center with 2, ... ]
;B[me]
C[... Black blocks with 3. ]
;W[ne];B[le];W[nd];B[nf]
C[After Black 7, the white stones are trapped. <= ]
)
(;B[og]
C[Failure.  

If Black attacks the two white stones on the right with 1, ... ]
;W[kd]
C[... White will extend to 2. Now it is Black who has to escape. ]
;B[if]
C[If he jumps to 3, ... ]
;W[kf]
C[... White will follow him with 4. White is becoming strong at the top, while her two stones on the right are quite resilient. <= ]
)
)