(;GM[1]FF[4]SZ[19]
GN[Diagram 11 (after simple ladder)]
PC[http://senseis.xmp.net/?NakayamaLadderProblem/Solution]AP[GoWiki:2009]
DT[2009-05-12]
C[Diagram from http://senseis.xmp.net/?NakayamaLadderProblem/Solution

Diagram 11 (after simple ladder)]
PL[B]

AB[ba][bb][db][eb][fb][gb][hb][ib][jb][kb][lb][mb][nb][ob][pb][qb][rb][bc][ec][fc][ad][bd][cd][fd][hd][id][jd][kd][ld][md][nd][od][pd][qd][rd][sd][fe][oe][bf][cf][df][ef][ff][gf][hf][if][jf][lf][mf][pf][eg][fg][kg][ng][qg][fh][kh][oh][rh][fi][ki][pi][bj][cj][dj][ej][fj][gj][hj][ij][jj][lj][qj][ck][fk][mk][cl][fl][il][jl][kl][nl][bm][em][hm][lm][om][pm][bn][dn][gn][jn][mn][qn][rn][sn][bo][co][fo][jo][no][bp][ep][fp][jp][np][op][rp][sp][dq][fq][jq][nq][qq][ar][br][cr][gr][hr][ir][jr][kr][lr][mr][pr][fs][ps]
AW[ca][da][ea][fa][ga][ha][ia][ja][ka][la][ma][na][oa][pa][qa][ra][sa][ab][cb][sb][cc][dc][gc][hc][ic][jc][kc][lc][mc][nc][oc][pc][qc][rc][sc][dd][ed][gd][ae][be][ce][de][ee][ge][he][ie][je][ke][le][me][ne][re][af][kf][nf][of][ag][bg][cg][dg][og][pg][sg][ah][bh][ch][dh][eh][lh][ph][qh][ai][bi][ci][di][ei][qi][ri][aj][kj][sj][ak][bk][gk][hk][ik][jk][kk][lk][al][bl][dl][gl][hl][ll][ml][am][fm][gm][mm][nm][an][en][fn][nn][on][pn][ao][do][eo][oo][po][qo][ro][so][ap][cp][dp][pp][qp][aq][bq][cq][oq][pq][er][nr][or][rr][bs][gs][hs][is][js][ks][ls][ms][ns][os]

;B[rj]C[B1]MN[1]
;W[si]C[W2]MN[2]
;B[sk]C[B3]MN[3]
;W[sh]C[W4]MN[4]
;B[rg]C[B5]MN[5]
;W[sf]C[W6]MN[6]
;B[se]C[B7]MN[7]
;W[rf]C[W8]MN[8]
;B[qf]C[B9]MN[9]

;
)
