(;GM[1]FF[4]SZ[19]
GN[You sure?]
PC[http://senseis.xmp.net/?ConstructionProblem6]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ConstructionProblem6

You sure?]
PL[W]

AB[ea][ia][cb][db][fb][gb][ib][ac][dc][ec][ic][ad][id][ae][ie][af][bf][cf][df][ef][ff][gf][hf]
AW[ba][ha][ab][bb][hb][bc][hc][bd][hd][be][ce][de][ee][fe][ge][he]
CR[ea][cb][db][fb][gb][dc][ec]

;W[gc]C[W1]MN[1]
;B[fd]C[B2]MN[2]
;W[fc]C[W3]MN[3]
;B[ed]C[B4]MN[4]
;W[ga]C[W5]MN[5]
;B[ca]C[B6]MN[6]
;W[fa]C[W7]MN[7]

;CR[ea][cb][db][fb][gb][dc][ec]
)
