(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem74/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem74/Solution

]
PL[B]

AB[oa][pa][jb][kb][pb][lc][mc][nc][oc][pc]
AW[ja][na][ib][nb][ob][qb][ic][jc][kc][qc][md][nd][pd][ke][pe]

;B[ka]C[B1]MN[1]
;W[lb]C[W2]MN[2]
;B[ia]C[B3]MN[3]
;W[la]C[W4]MN[4]

;
)
