(;GM[1]FF[4]SZ[19]
GN[Reference diagram (outside liberties filled)]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem78/Attempts]AP[GoWiki:2009]
DT[2011-01-06]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem78/Attempts

Reference diagram (outside liberties filled)]
PL[W]

AB[bb][db][dc][cd][dd]
AW[eb][ec][ed][be][ce][de][ee]
CR[ce][de]

;W[da]C[W1]MN[1]
;B[ca]C[B2]MN[2]
;W[bc]C[W3]MN[3]

;CR[ce][de]
)
