(;GM[1]FF[4]SZ[19]
GN[White to Move - Does the ladder work? - Part II]
PC[http://senseis.xmp.net/?LadderExercise6/Solution]AP[GoWiki:2009]
DT[2010-04-16]
C[Diagram from http://senseis.xmp.net/?LadderExercise6/Solution

White to Move - Does the ladder work? - Part II]
PL[W]

AB[db][dc][gc][jc][mc][ed][ee][ge][ef][hf][dg][fg][ig][dh][eh][fh][gh][jh][bi][ci][gi][hi][ki][dj][ej][hj][ij][lj][ck][fk][ik][jk][mk][gl][jl][kl][nl][hm][km][lm][om][cn][in][ln][mn][pn][do][fo][go][jo][mo][no][po][cp][ep][kp][pp][rp][cq][dq][fq][lq][nq][oq][pq][rq][cr][fr][mr][bs][es][fs]
AW[cb][cc][oc][dd][qd][de][ne][cf][df][gf][cg][gg][hg][qg][ch][hh][ih][di][ei][fi][ii][ji][bj][cj][fj][gj][jj][kj][qj][bk][gk][hk][kk][lk][hl][il][ll][ml][im][jm][mm][nm][rm][jn][kn][nn][on][qn][sn][ko][lo][oo][so][fp][gp][lp][mp][np][op][qp][gq][jq][mq][qq][br][gr][as]
CR[fi][gi][fj][gj][hj][fk][gk][hk][ik][gl][hl][il][jl][hm][im][jm][km][in][jn][kn][ln][jo][ko][lo][mo][kp][lp][mp][lq][mr]
SQ[ge][gf][hf][fg][gg][hg][ig][gh][hh][ih][jh][hi][ii][ji][ki][ij][jj][kj][lj][jk][kk][lk][mk][kl][ll][ml][nl][lm][mm][nm][mn][nn][on][pn][no][oo][po][np][op][pp]


;CR[fi][gi][fj][gj][hj][fk][gk][hk][ik][gl][hl][il][jl][hm][im][jm][km][in][jn][kn][ln][jo][ko][lo][mo][kp][lp][mp][lq][mr]
SQ[ge][gf][hf][fg][gg][hg][ig][gh][hh][ih][jh][hi][ii][ji][ki][ij][jj][kj][lj][jk][kk][lk][mk][kl][ll][ml][nl][lm][mm][nm][mn][nn][on][pn][no][oo][po][np][op][pp]
)
