(;
GM[1]
SZ[19]
AW[dc][ce][dn][dp][pp][po][oq][pr][np]
AB[fq][jp][pq][qq][qp][qo][qn][qd][oc]
C[Problem 65. Black to play.  

There are big points still to be played on the left side and at the top, but Black has an even bigger point somewhere else. Where should he play ? ]
(;B[mq]
LB[hq:A]

TE[2]
C[Correct Answer.  

Black 1 is a huge move. It attacks the white group on the right and defends against an invasion at A. ]
;W[mp];B[lq];W[om];B[pl]
C[After Black 5, White's group is still unstable and Black will build a moyo on the right side while attacking White. <= ]
)
(;B[ic]
LB[cj:A]
C[Failure.  

Black 1 is certainly a big point, as is Black A on the left side, but ... ]
;W[hq]
C[... the invasion of White 2 ... ]
;B[hp];W[ip]
C[... and 4 is severe. ]
;B[io];W[iq];B[gp];W[jq]
C[With the sequence to 8, White has settled her stones at the bottom and disrupted Black's stones there. <= ]
)
)