(;
AB[bc][bd][dc][dd][hc][jc][cd][df]
AW[bb][cb][db][cc][fc][fe]
C[Black's best play?

Source:
    Go World #21, p. 44
    "Basic Fighting Techniques",
    Miyazawa Goro]
(;
B[ec]
C[One possibility - but Black can usually do better.];
W[fb]
C[After White answers cautiously here, ...];
B[eb];W[ea]
C[... White's position looks a little fragile, without good eye potential.  But only if Black has good prospects of attacking/killing the entire corner, should Black play this way.

In most situations, the variation shows a better plan for Black.]
)
    (;
    B[fd]
    C[This wedge tesuji is the most severe move.

The attachment at A is also possible, but the given move is more effective.]
    LB[fb:A]
    (;
    W[gd]
    C[White cannot atari here, because ...];
    B[fb]
    C[... Black has this perfect follow-up.  White has no good answer.];
    W[gb]
    C[For example ...];
    B[gc];W[ed];B[eb]
    C[White's corner stones die.]
    )
        (;
        W[gc]
        C[Because of the previous variation, White answers here.];
        B[gd];W[hb];B[ic]
        C[White lives, but Black cuts off the outside stone and builds considerable thickness.  This excellent result would be satisfactory for Black in most cases.]
        )
    )
)

