(;GM[1]FF[4]SZ[19]
GN[Keima]
PC[http://senseis.xmp.net/?SolutionToShapeProblem3]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SolutionToShapeProblem3

Keima]
PL[B]

AB[dc][ec][ed][ee][df][bg]
AW[cb][cc][dd][be][de][bf]
CR[bg]

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

;CR[bg]
)
