(;GM[1]FF[4]SZ[19]
GN[Line 4 - problem]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem129/Attempts]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem129/Attempts

Line 4 - problem]
PL[W]

AB[oa][ob][qb][oc][rc][od][rd]
AW[na][nb][nc][qc][nd][qd][ne][oe][qe][re]

;W[pb]C[W1]MN[1]
;B[sb]C[B2]MN[2]
;W[ra]C[W3]MN[3]
;B[qa]C[B4]MN[4]

;
)
