(;
AB[bc][cc][dc][fc][pd][cf][dg][pn][qn][fo][oo][op][qo][ro][ip][iq][fq][gq][pq][hr]
AW[cd][dd][ed][ge][df][cj][pj][pm][qm][dn][nn][on][rn][po][dp][eq][hq][fr][gr]
PL[W]
C[White's response to the marked play?

Source:
    American Go Journal V.34 No.2 (2000 Summer)
    World Amateurs, Xin Wei (China) v. Ted Ning (USA-white)
    Jie Li's commentary]
TR[dg]
(;
W[gc]
C[In the game, White played the following fighting sequence, in which White doesn't seem to make much benefit from attacking the left side stones.];
B[fb];W[ef];B[ci];W[dj];B[di]
C[To make the most of the situation, where should White play now?]
(;
W[bf]
C[A mistake in direction.];
B[ej];W[ek];B[bj];W[bk];B[bi];W[ck];B[fj]
C[White's attack is not as effective as desired.];
W[qf]
C[A few more moves from the game ...];
B[nc];W[fh];B[eh];W[cg];B[fk]
)
    (;
    W[ei]
    C[If White insists on attacking, then playing on the outside is better.  One possible sequence follows.];
    B[bj];W[bk];B[bi];W[ej];B[bl];W[ck];B[be];W[pf];B[nd];W[mf]
    C[White should try to develop a center moyo.]
    )
)
    (;
    W[eg]
    C[Better than the game.];
    B[ef];W[ee]
    C[White can play this well-known ko tesuji.];
    B[de];W[ff];B[eh];W[fg];B[di];W[dj]
    C[White's shape is better and thicker.  Compare with the game line.]
    )
)

