(;
AB[cp][eq][pj][ok][ld][mf][lg][kg][jg][pi][qg][qf][re][rd][qd][qc]
AW[dd][id][pd][oc][pe][qe][of][rf][oh][mh][mg][lh][kh][qq][pk]
C[White plays.

Source:
    In the Beginning, p. 135
    Ikuro Ishigure, Ishi Press]
(;
W[ii]
C[Correct.
White must first address the pushing battle in the center.]
(;
B[hg]
C[This Black extension is natural.];
W[fd]
C[And White can now defend the top.];
B[gi]
C[The proper play to support the Black center group.];
W[cj]
C[But now White's center group is strong enough that White can take the big point on the left side.]
)
    (;
    B[fd]
    C[Not good.];
    W[ge];B[fe];W[gf]
    TR[ii]
    C[Because of the all important marked stone, White splits Black into 2 weak groups.]
    )
)
    (;
    W[fd]
    C[Too slow];
    B[jh]
    C[Now Black can push against the still weak center group.];
    W[ji];B[ii];W[jj]
    C[White must respond to the pushes.];
    B[ij];W[jk];B[ik];W[jl];B[hm]
    C[And White's center wall is useless given Black's right side formation.
Also, Black has gained great strength over the left side.]
    )
    (;
    W[cj]
    C[A mistake in direction.];
    B[fd]
    TR[id]
    LB[jh:A]
    C[Now because Black has the forcing moves starting with A in reserve, White's marked stone is in some danger.]
    )
    (;
    W[pl]
    C[Horrible];
    B[nj]
    LB[po:A]
    C[White has only strengthened Black's shape against White's center group.  In addition, Black A would threaten the 2 heavy White stones.]
    )
)

