(;GM[1]FF[4]SZ[19]
GN[Possible? Variation 1]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem18/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem18/Attempts

Possible? Variation 1]
PL[B]

AB[cb][db][hb][ec][ic][bd][cd][dd][ed][ge][ie][cg]
AW[bb][eb][fb][bc][cc][dc][gc]

;B[ac]C[B1]MN[1]
;W[ca]C[W2]MN[2]
;B[ab]C[B3]MN[3]
;W[da]C[W4]MN[4]
;B[fa]C[B5]MN[5]
;W[ga]C[W6]MN[6]
;B[gb]C[B7]MN[7]

;
)
