(;GM[1]FF[4]SZ[19]
GN[Double Ko Seki]
PC[https://senseis.xmp.net/?DoubleKoSeki/Example1]AP[GoWiki:2009]
DT[2019-05-16]
C[Diagram from https://senseis.xmp.net/?DoubleKoSeki/Example1

Double Ko Seki]
PL[B]

AB[ca][ea][db][eb][cc][dc][bd][cd][dd][ae][be][de][cf][df]
AW[ba][fa][ab][bb][cb][fb][bc][ec][fc][ad][ed][ee][af][bf][ef][bg][cg][dg][eg]
LB[da:b][ac:a]


;LB[da:b][ac:a]
)
