(;
AB[qd][od][qk][jd][fc][cj][cn][co][dm][pp][pq][qr][mq]
AW[qq][rq][po][qo][no][iq][dp][cp][dn][en][dd][df]
C[White plays.

Source:
    American Go Journal, Winter 1990, Vol. 24, No. 1, p. 32
    "Jim's Journal", James Kerwin 1p]
(;
W[md]
C[Clearly White must do something about Black's large framework in the upper right.  However, this move has the shortcoming of not holding future promise for attacking weak Black stones.  In addition, the move will swell Black's adjacent territories as the invading stone only becomes a burden to White.]
)
    (;
    W[qi]
    C[This invasion is more promising.  White not only won't have much trouble living, but also will have a chance to harass Black's right side group.]
    (;
    B[qg]
    C[Black can try to pincer the invading stone here.];
    W[pj];B[pk];W[nj]
    C[But White can quickly run out and Black's stones are now attackable.]
    )
        (;
        B[pj]
        C[Black can also try to press White from this side.];
        W[oh];B[nj];W[qf]
        C[But White has room to settle in deeper into Black's former sphere of influence.]
        )
    )
)

