(;
AB[fb][ec][ed][dd][cd][bd][ff][fe][gf][dg][kc][mc][ke]
AW[bc][cc][dc][cb][da][eb][fc][fd][ge][he][ie][ic]
C[Black plays.

Source:
    Go World #20, p. 38
    Basic Fighting Techniques
    Miyazawa Goro 6P]
(;
B[hb]
C[Black's placement looks promising, but ...];
W[ib]
LB[gd:A]
C[... Black has nothing after White blocks here.

The reader can work out that Black cannot make use of the cut at A.]
)
    (;
    B[gb]
    C[Increasing liberties by extending isn't any better.];
    W[hc]
    C[After White makes shape here, again Black has nothing. ]
    )
    (;
    B[hc]
    C[This classic attachment tesuji, at the vital point, works.]
    (;
    W[gb]
    C[White can play safely, but ...];
    B[ib]
    C[... this hane reduces White's territory.

One possible sequence follows.];
    W[hb];B[id];W[jc];B[jd];W[jb];B[gd]
    C[Black cuts off the 3 center stones.]
    )
        (;
        W[hd]
        C[If White tries to refute the invasion here, ...];
        B[gb]
        LB[gd:A][ib:B]
        C[... Black calmly connects, after which White has no good answer.

Black can make miai of A and B.];
        W[hb]
        C[And going for the kill here doesn't work well.];
        B[gc];W[gd];B[ib];W[jb];B[ha];W[jc];B[fa]
        C[Black lives inside, and White has 2 separated and weak groups.]
        )
        (;
        W[hb]
        C[Fails immediately.];
        B[gd]
        C[White is broken.]
        )
    )
)

