(;GM[1]FF[4]SZ[19]
GN[Ladder]
PC[http://senseis.xmp.net/?NetExample6]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?NetExample6

Ladder]
PL[B]

AB[cc][ec][lc][oc][qd][ee][dg][ch][dh][eh][bi][di][bj][qj][bk][ck][bl][dl][el][em][qm][cn][dn][co][jp][mq][pq][qr][rr]
AW[gc][jc][ce][bg][cg][bh][ci][ei][cj][dj][dk][fk][cl][pl][ql][bm][cm][dm][bn][on][do][eo][po][bp][cp][qp][eq][qq]

;B[fj]C[B1]MN[1]
;W[ej]C[W2]MN[2]
;B[fi]C[B3]MN[3]

;
)
