(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem20/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem20/Solution

]
PL[B]

AB[hp][ip][fq][gq][jq][kq][er][gr][lr][hs]
AW[ep][fp][gp][eq][hq][iq][hr][ir][jr][fs]

;B[es]C[B1]MN[1]
;W[dr]C[W2]MN[2]
;B[js]C[B3]MN[3]

;
)
