(;GM[1]FF[4]SZ[19]
GN[Double ko seki, shared liberty]
PC[http://senseis.xmp.net/?DougsGoBlog/May2003]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?DougsGoBlog/May2003

Double ko seki, shared liberty]
PL[B]

AB[ca][ea][db][eb][bc][dc][ad][bd][cd][dd]
AW[aa][ba][fa][bb][cb][fb][ac][ec][fc][ed][ae][be][ce][de][ee]


;
)
