(;GM[1]FF[4]SZ[19]
GN[Ladder]
PC[http://senseis.xmp.net/?BeginnerExercise308/Attempts]AP[GoWiki:2009]
DT[2010-11-16]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise308/Attempts

Ladder]
PL[B]

AB[pg][ph][oi][lj][oj][jk][kk][lk][ok][hl][il][kl][jm][km][mm][nm][om][kn][ln][nn][on][ho][io][jo][oo][op][pp][oq][pq][qq][pr][rr]
AW[qh][li][ni][pi][qi][kj][mj][pj][mk][pk][ll][ml][pl][im][lm][pm][in][jn][mn][pn][ko][lo][mo][no][po][ro][lp][np][qp][rp][lq][nq][rq][kr][lr][nr][or][ks][os]
CR[pg][ph][qh]

;B[ol]C[B8]MN[8]
;W[oh]C[W9]MN[9]
;B[nh]C[B10]MN[10]
;W[og]C[W11]MN[11]
;B[of]C[B12]MN[12]
;W[ng]C[W13]MN[13]
;B[mh]C[B14]MN[14]
;W[mi]C[W15]MN[15]

;CR[pg][ph][qh]
)
