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

this]
PL[B]

AB[ca][da][db][dc]
AW[ba][bb][bc][cc][cd][dd]

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

;
)
