(;
AB[pd][ql][om][po][pp][pq][hp][ip][jp][fq]
AW[dd][cn][qn][rn][dp][qp][qq][hq][iq]
PL[W]
C[White plays.

Source:
     American Go Journal, v35 #4, pp. 24-25
     Originally from "A Middle Game Joseki", Baduk Monthly.];
W[gq]
LB[jq:A]
C[Last week's problem showed a variation with White playing A.  But what kind of result can White expect by extending in the other direction here?];
B[gp]
(;
W[eq]
C[With this clamp tesuji, White connects and appears to be doing well.  But ...];
B[fr];W[fp];B[er]
C[... Black sacrifices another stone here!];
W[dr];B[cq];W[dq];B[fo]
C[Now Black's plan should be clear.];
W[ep];B[jq];W[gr];B[ir]
C[Black's squeeze is exquisite.  White gains some territory by capturing 3 stones, but Black gains even more by closing off the lower right side and creating center thickness.]
)
    (;
    W[fr]
    C[White can try to hane instead, but ...];
    B[eq];W[er];B[dq]
    C[... now Black damages White's earlier investment in the lower left corner.]
    )
)

