(;
AB[dp][iq][np][pp][mp][mq][op]
AW[qn][pj][oq][nq][mr][lq][lp]
TR[lp]
C[Black's response to the marked play?

Source:
    "All About the Pincer", Takagawa Shukaku
    Go World #10, p. 43]
(;
B[lr]
C[Cutting on the left is the wrong side.]
(;
W[nr]
C[If White simply connects, then Black's 1st move suddenly becomes a good move.];
B[kr]
C[Now White must make life in the corner.];
W[qq];B[qp];W[rq];B[lo]
TR[lp][lq]
C[Black can now take this key point, which gives magnificent outward influence.  The marked White stones cannot escape.]
)
    (;
    W[kr]
    C[Of course, White will avoid the previous variation by capturing here.

In such situations, the proverb is "capture the cutting stone".];
    B[nr];W[ls];B[or]
    TR[iq]
    C[Black can capture the 2 stones, but White's ponnuki robs Black's marked pincer of all its effectiveness.]
    )
)
    (;
    B[nr]
    C[Cutting on the right is correct.  White cannot avoid an unfavorable position.]
    (;
    W[lr];B[or]
    TR[iq]
    C[Now Black is happy to capture the 2 stones.  White's 4 stones have no eye-shape, so Black's marked stone has lost none of its effectiveness as a pincer.]
    )
        (;
        W[or]
        C[Following the proverb of "capturing the cutting stone" is the usual move, but ...];
        B[lr];W[ns];B[kr];W[qq];B[qp];W[rq];B[lo]
        C[... this result is similar to the earlier variation, in which Black is happy with the magnificent outside influence.]
        )
    )
)

