(;GM[1]FF[4]SZ[19]
GN[Main line]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem5/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem5/Solution

Main line]
PL[W]

AB[oa][mb][nb][oc][od][pd][qd][sd][re][qf]
AW[na][ob][pb][pc][qc][rc][rd]
LB[qa:a][ra:b][sb:c][sc:d]

;W[rb]C[W1]MN[1]

;LB[qa:a][ra:b][sb:c][sc:d]
)
