(;GM[1]FF[4]SZ[9:10]
GN[]
PC[http://senseis.xmp.net/?ConstructionProblem2/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ConstructionProblem2/Attempts

]
PL[B]

AB[ba][ab][cb][bc]


;
)
