(;
AB[dd][pd][ef]
AW[cf][fc]
TR[fc]
C[Black's response to the marked play?

Source:
    Practical Tactics and Tesuji, Rin Kaiho 9P
    Go World #16, p. 40]
(;
B[ce]
C[Making this contact play is tempting for many players, but is not good.];
W[df];B[ee];W[dh]
LB[de:A][cc:B]
C[Black has serious weaknesses at A and B.]
)
    (;
    B[ec]
    C[The contact play on the other side is also bad.];
    W[fd];B[ce];W[df];B[ee]
    LB[de:A][ed:B][cc:C]
    C[Now Black has weaknesses at A, B, and C.]
    )
    (;
    B[fd]
    C[If Black tries to use the attach-and-extend joseki, ...];
    W[gd];B[fe];W[ec];B[dc]
    TR[ef]
    C[With this result, the marked stone is in a ridiculous position.]
    )
    (;
    B[cc]
    C[A simple yet powerful move.  The go proverb says, "First defend, then attack."

Now Black makes miai of attacking the left or the top.]
    (;
    W[dh]
    C[For example, if White defends the left side, ...];
    B[id]
    C[... Black has this good pincer.]
    )
        (;
        W[ee]
        C[If White cuts through the knight's move, Black again has to play carefully.];
        B[de];W[df];B[ed];W[fe];B[fd];W[gd];B[ge];W[ff];B[eg]
        C[The result of this fight is good for Black.  If this fight scares you, you had better give up the game.]
        )
        (;
        W[de]
        C[White can also cut this way, but ...];
        B[ed];W[ee];B[fd];W[fe];B[gd]
        C[... Black has a large territory and a good result.]
        )
    )
)

