(;
AB[qd][od][jc][je]
AW[hc][he][dc][ce]
C[White to invade Black's framework.

Assume that Black does not have an extension down the right side.

Source:
    Keshi and Uchikomi, Kaoru Iwamoto 9p,
    American Go Journal, Vol. 19, No. 2, 1985, pp. 22-23]
(;
W[le]
C[Too timid.  This kind of erasure move would be good if Black had an extension down the right side.  But here, this play gives Black too easy of a time.]
)
    (;
    W[mc]
    C[Not good.];
    B[me];W[pc];B[qc]
    C[And even if White could live, Black would build adequate compensation in terms of outside influence.]
    )
    (;
    W[lc]
    C[An effective invasion point.];
    B[le]
    (;
    W[ld]
    C[White threatens to move out to the right.]
    (;
    B[me]
    C[And if Black blocks that exit ...];
    W[jb]
    C[... White connects out to the left.];
    B[ib];W[ic];B[kb];W[jd]
    )
        (;
        B[kd]
        C[If Black blocks the connection to the left, ...];
        W[me];B[md];W[nd];B[ne];W[mc];B[mf];W[oc]
        C[... White has enough room to live along the top.];
        B[md];W[nc];B[pc];W[kb];B[jb];W[oe];B[pd];W[pb];B[qb];W[oa]
        C[With White living, Black has to create compensation using his wall.]
        )
    )
        (;
        W[jb]
        C[A mistake in timing.];
        B[ib];W[ic];B[kb];W[jd];B[kc];W[kd];B[ld]
        C[A disaster for White.]
        )
    )
)

