(;GM[1]FF[4]SZ[19]
GN[Letter U shape]
PC[http://senseis.xmp.net/?SecondaryLibertiesExampleU]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SecondaryLibertiesExampleU

Letter U shape]
PL[B]

AW[gg][ig][gh][ih][gi][ii][gj][ij][gk][hk][ik]


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)
