(;GM[1]FF[4]SZ[19]
GN[[Twisted four in the corner\]]
PC[http://senseis.xmp.net/?CornerShapes]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?CornerShapes

[Twisted four in the corner\]]
PL[B]

AB[aa][ca][cb][bc][cc][ad][bd]
AW[db][dc][cd][ae][be][de]


;
)
