(;GM[1]FF[4]SZ[19]
GN[Key stones]
PC[http://senseis.xmp.net/?ConstructionProblem5/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ConstructionProblem5/Attempts

Key stones]
PL[B]

AB[ab][db][bc][cc][ec]
AW[ea][cb][eb][gb][fc][ad][bd][cd][fd][de][ee]
CR[ea][ab][cb][db][eb][bc][cc][ec]


;CR[ea][ab][cb][db][eb][bc][cc][ec]
)
