(;GM[1]FF[4]SZ[19]
GN[Good for Black]
PC[http://senseis.xmp.net/?BQM171]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM171

Good for Black]
PL[B]

AB[ec][gc][cd][dd][gd][ee][fe]
AW[fb][cc][dc][fc][fd][ge][he][cf]

;B[eb]C[B1]MN[1]
;W[gb]C[W2]MN[2]
;B[ed]C[B3]MN[3]

;
)
