(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem18/Solution]AP[GoWiki:2009]
DT[2017-03-15]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem18/Solution

Variation]
PL[W]

AB[ca][bb][db][cc][ad][bd]
AW[eb][gb][dc][ec][cd][ae][be][ce][ee]

;W[ab]C[W1]MN[1]
;B[bc]C[B2]MN[2]
;W[ea]C[W3]MN[3]
;B[aa]C[B4]MN[4]
;W[da]C[W5]MN[5]
;B[ac]C[B6]MN[6]
;W[cb]C[W7]MN[7]

;
)
