(;GM[1]FF[4]SZ[19]
GN[Ladder]
PC[http://senseis.xmp.net/?LadderExercise1/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LadderExercise1/Solution

Ladder]
PL[W]

AB[bc][cc][dc][fc][bd][pd][cf][ng][li][mi][pi][qi][ri][nj][oj][lk][nk][pk][qk][nl][pm][qo][kp][qp][oq][pq][or]
AW[cd][dd][ed][be][ce][pf][mh][ph][di][ni][oi][lj][mj][pj][qj][rj][mk][ok][co][dp][pp][gq][qq][rq][pr][rr][qs]

;W[ec]C[W1]MN[1]
;B[eb]C[B2]MN[2]
;W[fb]C[W3]MN[3]
;B[gb]C[B4]MN[4]
;W[ki]C[W5]MN[5]

;
)
