(;
AB[dd][jd][nd][pd][dj][lj][nj][pj][dp][jp][np][pp]
AW[ld][qf][ng][nm][pm]
C[Black's response to White's marked play?

Source:
    American Go Journal, Vol. 35, No. 2, pp. 34-35
    Originally from Go Review X, May 1970.]
TR[ld]
(;
B[lc]
C[The kind of reply that White wants in a high handicap game.];
W[kc];B[mc];W[kd]
TR[jd]
C[Black may have fortified the top right corner, but White's stones at the top have become stronger.  And Black's marked stone is not effective.]
)
    (;
    B[qd]
    C[Defending the corner is better than the previous variation, but ...];
    W[lf]
    C[... White escapes to strengthen his stones at the top.]
    )
    (;
    B[me]
    C[This move reflects an active offense and is severe.];
    W[le];B[mf]
    TR[jd]
    C[Black separates the top stones and exposes each group to Black's assault.  Even Black's marked stone is usefully placed.  Compare this position with the 1st variation.]
    )
)

