(;GM[1]FF[4]SZ[19]
GN[Double Ko Seki]
PC[https://senseis.xmp.net/?DoubleKoSeki]AP[GoWiki:2009]
DT[2021-09-04]
C[Diagram from https://senseis.xmp.net/?DoubleKoSeki

Double Ko Seki]
PL[B]

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


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