(;GM[1]FF[4]SZ[19]
GN[Solution 2]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem131/Solution]AP[GoWiki:2009]
DT[2015-03-08]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem131/Solution

Solution 2]
PL[W]

AB[ek][bl][cl][dl][am][em][fm][gm][bn][cn][hn][co][fo][ho][gp][bq][fq][gq][cr][er][ds][es]
AW[bm][cm][dm][dn][en][fn][gn][bo][bp][cp][dp][ep][fp][dq][eq][dr][fr]
LB[ao:a][as:b][cs:c]

;W[br]C[W1]MN[1]
;B[bs]C[B2]MN[2]
;W[ar]C[W3]MN[3]
;B[gr]C[B4]MN[4]
;W[cq]C[W5]MN[5]
;B[go]C[B6]MN[6]
;W[aq]C[W7]MN[7]

;LB[ao:a][as:b][cs:c]
)
