(;
AB[pc][pd][cf][qg][di][pk][cl][qn][qp][fq][kq][er]
AW[jc][qc][qd][dd][be][qi][qk][ql][ol][cn][dp][dr]
C[Black's response to White's marked play?

Source:
    American Go Journal, Vol. 35, No. 2
    Jie Li (Black) v. Ming Jiu Jiang 7p]
TR[qd]
(;
B[qe]
C[Classic book joseki, but ...];
W[re];B[rf];W[pe]
C[... this cut exposes a problem for Black after this joseki plays out to completion.];
B[qf];W[pb];B[ob];W[qb];B[nc];W[oe]
C[Now White takes the opportunity to first make a forcing exchange here, before connecting in the top right.];
B[nd];W[rd]
C[Given White's positions on the top and middle right, Black has 2 separate weak groups.  This result is bad for Black.]
)
    (;
    B[qb]
    C[To avoid the problem in the previous variation, Jie Li plays the hane on the other side here in the game.];
    W[qf];B[pf];W[pe];B[oe];W[qe];B[pg];W[rb];B[pb];W[rg];B[rh];W[sf];B[lc]
    LB[qh:A]
    C[Playing A is big, but the game play is more urgent in this overall position.  Black is looking forward to invading the top left.];
    W[qh]
    C[In the game, White takes the big point, but ...];
    B[fc]
    C[... Black can now take the equally big point in the top left.]
    )
)

