(;GM[1]FF[4]SZ[19]
GN[... a fraction later ...]
PC[http://senseis.xmp.net/?ConstructionProblem4/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ConstructionProblem4/Solution

... a fraction later ...]
PL[B]

AB[ih][jh][hi][ki][hj][kj][ik][jk]


;
)
