(;SZ[19]AB[dr]AB[cr]AB[cq]AB[bq]AB[cp]AB[dp]AW[co]AW[do]AW[cn]AW[bm]AW[bp]AB[cm]AW[dm]AW[dl]AB[dn]AB[en]AB[em]AB[eo]AW[ep]AW[dq]AW[eq]AW[er]AW[es]AW[fq]AW[gq]AB[gr]AB[gs]AW[hr]AW[ir]AB[iq]AB[hq]AB[jr]AW[jq]AB[gp]AB[fp]C[assume no ladder blocks]GM[1]FF[4]CA[UTF-8]RU[Japanese]KM[0]TM[1800,0,30,5]PW[]PB[]PL[W]
(;W[hp];B[ip];W[ho];B[go]
(;W[hn]
(;B[jp]
(;W[el];B[fm]
(;W[fo]C[black cannot escapeRIGHT])
(;W[gn];B[fo]
(;W[fl];B[gm])
(;W[gm];B[fl])
(;W[gl];B[fs])
(;W[fn];B[gl]))
(;W[fl];B[gm]
(;W[fo];B[gn])
(;W[gn];B[fo]C[behind])))
(;W[fo];B[gn]
(;W[el];B[gm])
(;W[gm];B[fn]
(;W[el]C[RIGHT])
(;W[fm];B[el])
(;W[fl];B[fs]))))
(;B[io];W[el];B[gn];W[gm];B[hm];W[in];B[fm];W[gl];B[jn];W[im];B[hl];W[fn];B[fo];W[fl]))
(;W[gn];B[fo]
(;W[hn];B[jp]
(;W[el];B[fm]
(;W[fl];B[gm])
(;W[gm];B[fl])
(;W[gl];B[fs])
(;W[fn];B[gl]))
(;W[fl];B[fs]))
(;W[el];B[fm]
(;W[hm];B[fs])
(;W[hn];B[jp]
(;W[fl];B[gm])
(;W[gm];B[fl])
(;W[gl];B[fs])
(;W[fn];B[gl])))
(;W[fm];B[el])
(;W[fl];B[fs];W[hn];B[jp]))
(;W[fo];B[gn];W[hn];B[hm];W[gm];B[fn];W[im];B[jp];W[el];B[gl]
(;W[fl];B[fm];W[hl];B[gk]C[only ko.])
(;W[hl];B[fl])))
(;W[jp];B[hp]
(;W[kr];B[fs])
(;W[hs];B[is]))
(;W[kr];B[fs];W[hs];B[is])
(;W[ip];B[hp];W[gn];B[fo])
(;W[fr];B[ds])
(;W[fs];B[ds])
(;W[hs];B[is])
(;W[bo];B[hp])
(;W[cl];B[hp])
(;W[el];B[hp])
(;W[gn];B[fo];W[hp];B[ip];W[ho];B[jp]
(;W[el];B[fm])
(;W[fl];B[fs]))
(;W[ho];B[hp];W[fo];B[jp];W[el];B[fm])
(;W[ds];B[fs];W[hs];B[is]))
adum