(;
AB[dc][ce][ic][kc][qd][pe][nd][ne][mf][qi][hm][el][en][dn][eo][dp][dq][cq][eq][gr]
AW[oc][lc][lb][me][ke][qk][qp][op][fp][ep][hp][iq][jo][dj][cl][cn][co][do][cp]
PL[W]
C[White to play.

This position is from Shusaku (Black) vs. Ito Showa.

Source:
    "How Would You Play Here?  Miyamoto Naoki
    Go World #16, p. 49]
(;
W[gc]
C[White tries to attack the 2 top middle stones, but ...];
B[ie]
C[... Black can simply jump out.  Now White is weak both on the top left and top right.]
)
    (;
    W[cg]
    C[A safe move, but White risks losing the initiative.  For example, Black may start attacking the top right group.]
    )
    (;
    W[fj]
    C[Playing here keeps the initiative, but ...];
    B[jm]
    C[... Black simply runs into the framework to the right that White should be developing.]
    )
    (;
    W[jl]
    C[Correct.  Showa played this move in the game to build the framework to the right, while attacking the group to the left.
Shusaku (Black) is already in a very difficult position.];
    B[ej]
    C[To strengthen the group, Shusaku jumps toward the top, but this move ...];
    W[ei]
    C[... induces Showa to strengthen the left side group.];
    B[fj];W[cf]
    C[A good forcing attachment.];
    B[df];W[cg];B[ol]
    C[If Shusaku ends in gote in the top left, the Showa surrounds the lower right.  So Shusaku has to invade here.];
    W[pi];B[qh];W[pj];B[ll];W[im];B[pm]
    C[Still being behind in territory, Shusaku cannot afford to defend the left side group, and so has to tenuki again to strengthen this right center group.];
    W[mj];B[rm];W[ph];B[qg];W[on]
    C[Shusaku has 2 weak groups, and Showa is clearly controlling the game.

The great Shusaku struggled desperately for over 300 more moves, before recovering from this position to win.]
    )
)

