(;GM[1]FF[4]SZ[19]
GN[Main line]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem42/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem42/Solution

Main line]
PL[W]

AB[ka][pa][lb][ob][lc][oc][ld][me][ne][oe]
AW[ib][kb][pb][qb][kc][kd][pd][le][pe][lf][of][pf][ng]

;W[la]C[W1]MN[1]
;B[ma]C[B2]MN[2]
;W[mc]C[W3]MN[3]

;
)
