(;
AB[dd][dj][dp][pp][pj][pd][jp][fp][fo][do][jo][kn]
AW[fq][dn][gp][eq][io][jn][ip]
TR[ip]
C[Black's response to the marked play?

Source:
    "Masterpieces of Handicap Go"
    Kobayashi Koichi 9P
    Commentary:  Nakayama Noriyuki 5P
    American Go Journal, Vol. 31, No 2, pp. 26-27]
(;
B[dq]
C[Black can create an imposing development on the left side, but ...];
W[jq]
C[... White immediately takes advantage of this "head of the 2 stones" shape.];
B[kq];W[kr];B[lq];W[lr];B[mq];W[km];B[ln];W[lm]
C[White bends Black around into a horrible shape, while creating a strong group and outside thickness.]
)
    (;
    B[jq]
    C[Correct.  This move not only creates good shape, but also ...];
    W[iq]
    LB[hr:A]
    C[... forces White to descend here.  If White tenukis instead, Black can harass the group with a slide to A.];
    B[dq]
    C[Now Black can come back to take the big corner point.];
    W[fm]
    C[After White responds to Black's left side development, ...];
    B[km]
    C[... Black can then switch back here for this wonderful move, to exert power over a huge area on the right side.  ]
    )
)

