(;GM[1]FF[4]SZ[19]
GN[Black is very thick]
PC[http://senseis.xmp.net/?MiddleGameDiscussion1]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?MiddleGameDiscussion1

Black is very thick]
PL[B]

AB[gb][ib][gc][ic][gd][jd][pd][je][cf][if][jf][kf][lf][jg][dj][pj][cn][pp]
AW[hb][fc][hc][jc][kc][dd][hd][id][kd][ie][ke][kj][jp][cq][fq][nq]

;W[ia]C[W6]MN[6]
;B[he]C[B7]MN[7]
;W[jb]C[W8]MN[8]
;B[ge]C[B9]MN[9]

;
)
