(;
AB[pc][qe][oq][eq][eo][dn][em][fm][gm][in][cl][ck][cj][ci][ch][dh][dg][eh][fh][hh][hi][ji][ig][jg][cf][bf][de][cd][dc][db]
AW[eb][ec][ee][ef][df][eg][fg][gg][hg][if][kc][qp][cp][co][cm][bm][dm][dl][el][hl][gl][fl][kl][bk][bj][bi][bh][bg][cg]
C[White plays.

Source:
    Blueprint 361, Miyamoto Naoki 9d
    Go World #1, May-June 1977, p. 51]
(;
W[jf]
C[Pushing here is the key point!];
B[lp]
C[Black can try to build up the bottom with this play.];
W[kg];B[kh];W[lg];B[lh]
C[Black cannot afford to omit this play.];
W[ij];B[ii]
C[Again, Black must respond.];
W[jq]
C[And White still has room to invade the bottom.];
B[kn]
C[If Black blocks the only escape route, ...];
W[gq]
C[White easily makes life along the bottom edge.

First making a strong shape at the top, and then taking advantage of the weakness of Black's center group and thinness of Black's lower side in this way, is a high-level strategy.]
)
    (;
    W[lp]
    C[This pincer is the 2nd best move on the board, but not the best.];
    B[jf]
    C[Given the previous variation, Black ignores the pincer to take the key point.  Two possible sequences follows.]
    (;
    W[je];B[ie];W[hf];B[jd];W[ke];B[kd];W[le];B[ld];W[id];B[jc]
    C[And now that Black's center group is largely safe, and Black has taken top territory from White, White's result is not good.]
    )
        (;
        W[id]
        C[White might also try falling back to defend here.];
        B[ie];W[hd];B[jq];W[np];B[qk]
        C[But comparing this result with the correct main line makes clear why this line is much worse.]
        )
    )
    (;
    W[nc]
    C[Too defensive.];
    B[jf]
    C[Again, Black takes the key point.];
    W[je]
    C[And if White tries to seal off the top area, ...];
    B[ie];W[hf];B[jd];W[ke];B[kd];W[le];B[ld];W[md];B[lc]
    C[... White has no hope of capturing Black, who lays waste to White's hopes at the top.

White's 1st move in this variation has been for nothing.]
    )
)

