(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[http://senseis.xmp.net/?UnderTheStonesProblem6/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?UnderTheStonesProblem6/Solution

Variation]
PL[B]

AB[ab][cb][db][fb][ac][bc][ec][fc][bd][fd][ge][ff][bg][cg][eg]
AW[ba][bb][eb][cc][dc][cd][ed][be][ce][de][ee]

;W[ae]C[W4]MN[4]
;B[ea]C[B5]MN[5]
;W[ad]C[W6]MN[6]
;B[ca]C[B7]MN[7]
;W[aa]C[W8]MN[8]

;
)
