(;GM[1]FF[4]SZ[19]
GN[L-group]
PC[http://senseis.xmp.net/?HowToRead]AP[GoWiki:2009]
DT[2014-03-25]
C[Diagram from http://senseis.xmp.net/?HowToRead

L-group]
PL[B]

AB[db][dc][dd][be][ce][de]
AW[cb][cc][bd][cd]
CR[bc]
LB[ba:e][ca:a][ab:d][bb:c][ac:f][ad:b]


;CR[bc]
LB[ba:e][ca:a][ab:d][bb:c][ac:f][ad:b]
)
