(;
AB[cd][pd][pl][ml][oo][no][mo][pq][oq][nq][hq][pf][cc][cf][mn][pc][ic][ie][lc][ld]
AW[dp][fq][kp][mp][on][nn][po][pp][qq][rp][ip][hp][di][eg][ee][dc][ob][jc][kc][je]
C[Black's response to White's marked move?

Source:
    American Go Journal, Sept. 1981, Vol. 16, No. 4
    2nd Tengen Final, 1981, game 2
    Kobayashi Koichi 7P   vs.  Sugiuchi Masao 9P
    Kobayashi's commentary.]
TR[je]
(;
B[id]
C[Natural and wrong.
With the following game sequence,
White splits Black's stones.];
W[ke];
B[ig];
W[le];
B[nc];
W[kh];
B[ii];
W[kj]
)
    (;
    B[ke]
    C[Correct.
Black can build outside thickness with
the following line.];
    W[jd];
    B[jf];
    W[id];
    B[hd];
    W[hc];
    B[if];
    W[gd];
    B[he];
    W[ib];
    B[ql]
    C[And Black is far ahead.]
    )
)
