(;
AB[qd][od][qj][oj][lc][qh]
AW[jc][ol][ql][qp][oq][oh][qc]
C[Black's response to White's marked play?

Source:
American Go Journal, Sept 1981, Vol. 16, No. 3, pp. 12-13
Keshi and Uchikomi, Kaoru Iwamoto 9 dan]
TR[qc];

(;
B[pc];
W[rd];
B[rc];
W[qe];
B[qb];
W[mh];
B[pf]
LB[pi:a]
C[Otherwise White plays here and isolates
the three Black stones.

Later White A may be worthwhile.]
)
    (;
    B[re]
    C[Bad.  Allows a White counter-attack.];
    W[rd];
    B[pd]
    C[Forced.
Otherwise White cuts up Black's lines.];
    W[ke]
    LB[nc:a]
    C[Now White can either invade at A or
take the corner.]
    )
    (;
    B[rd]
    C[Also bad.];
    W[pc];
    B[oc]
    C[Otherwise White lives easily.];
    W[pd];
    B[pe];
    W[qe];
    B[rc];
    W[qg]
    C[Black's side three stones are now isolated.]
    )
    (;
    B[pd]
    C[Inferior.];
    W[je]
    LB[nc:a][kd:b][ld:c]
    C[White's position is very strong.
Black needs another move to make the
corner solid.  Otherwise White can aim at A,
or even B or C.]
    )
)
