(;GM[1]FF[4]SZ[6]
GN[Example 1]
PC[http://senseis.xmp.net/?BensonsAlgorithm]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BensonsAlgorithm

Example 1]
PL[B]

AB[aa][ca][ea][bb][cb][fb][ac][bc][fc][ad][fd][ae][ce][ee][fe][af][bf][df][ef]
LB[ba:a][fa:c][ab:b][dc:f][cf:d][ff:e]


;LB[ba:a][fa:c][ab:b][dc:f][cf:d][ff:e]
)
