(;GM[1]FF[4]SZ[19]
GN[High One Space Extension]
PC[http://senseis.xmp.net/?HighOneSpaceExtension]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?HighOneSpaceExtension

High One Space Extension]
PL[B]

AB[dd]
LB[fc:a]

;B[df]C[B1]MN[1]

;LB[fc:a]
)
